First HDD MPEG4 Video Camcorder 321
An anonymous reader submits "This is a few weeks old but we have to talk about
this. Samsung introduced the world first hard disk drive based camcorder so you don't have to buy those MiniDV, Hi8s, and DVD-Rs. You take pictures, play MP3s, PAL+NTSC video! The picture quality is 350K so not a replacement for digital camera. The downside is the HDD size is 1.5 Gig so you can record video just over an hour! Why can't these bozos let us put a 40gig 2.5 IDE drive and let us record continuously for 25+ hours! Is there a corporate conspiracy to limit recording time of camcorder to about an hour (like DVD-R camcorders)?"
Hack it... (Score:5, Interesting)
Can't Hack it... (Score:5, Interesting)
Samsung is not a hacker-friendly corporation like TiVo. If anything you'd get slapped with DMCA suit if you "upgrade" the drive.
Also, I don't think this is a consumer-grade HDD. There is no mention [samsungelectronics.com] of the type in the official press release, and arising out of the fact that none of the current HDD mfg's make anything near 1.5gb capacity drives, I'm willing to guess: this is a proprietary model.
Re:Can't Hack it... (Score:2, Interesting)
Re:Can't Hack it... (Score:5, Insightful)
You would not be circumventing a copyright protection mechanism and hence DMCA wouldn't be involved, unless they have some sort of protection mechanism built-in to prevent HDD upgrades.
There are two companies that make 1 GB hard drives (Score:3, Insightful)
Corporate Conspiracy? (Score:2, Informative)
AC
Re:Corporate Conspiracy? (Score:3, Insightful)
Re:Corporate Conspiracy? (Score:2)
I think your right, but you have to admit that it is an even easier copy-protection scheme to get around than CSS. All that is required is to sit through the movie twice then splice the clips together. WHich shelling out an additional $9. Yes it might keep the film off the street (and IRC) for a few extra hours, but it hardly seems worth the lost additional revenue of customers who won't buy the camera due to the time limit.
What I'd like to see.. (Score:5, Insightful)
My Sony Digital 8 Handycam can store 60 minutes of video on a standard 8mm or Hi-8mm tape. Now, forgive me if my math is wrong, but I know that approximately 4 gigs of hard drive space is used when I download approximately 20 minutes of video (it's actually 18, but for my calculuations, 20 is easier). I'm assuming this means that around 12 gigs of data can be stored on an 8mm tape. If I could get a camcorder that would store MPEG-4 video on an 8mm tape, I could store around 8 hours of video on a single 8mm tape.
The advantage that I see to using tape, is that I can easily archive and store the video. If I have to backup my video from a hard drive on the camcorder to a hard drive on my system, I will be quickly running out of room. Yes, I could back it up to CD or DVD (if I had a DVD burner), but that's extra work I don't want to have to deal with.
Re:What I'd like to see.. (Score:2)
Re:What I'd like to see.. (Score:2)
My point was that I like to keep all of the video I take. I think this product is very cool, but for my use I would have to spend the time downloading the video to my hard drive, then back it up to something or else I would quickly run out of hard drive space on my computer.
Re:What I'd like to see.. (Score:2, Informative)
Re:What I'd like to see.. (Score:2, Interesting)
DV Backup ? (Score:2, Informative)
Re:DV Backup ? (Score:2)
I think there was some misunderstanding in my original post. What I'm saying is that I like to keep all of the video I take. If I use this hard drive solution, I will have to transfer all video I take to my computer and then backup to some other media, or else I will quickly be running out of hard drive space on my computer. Now, if go and use this software you have pointed out, I would be downloading from a hard drive to my system and then backing it up to tape. My current setup is a little more efficient than that ;-)
no mpeg compression on tape (Score:5, Informative)
Also remember 8mm tapes aren't designed to store digital video the same way DV is. You really should not be using them for archive purpose and expect them to be in a reasonable state when you check in on them in a few years time. Ofcourse they work but there is a reason you get a price break buying them instead of a dv cam.
Re:no mpeg compression on tape (Score:2)
Re:no mpeg compression on tape (Score:5, Interesting)
Well, I've left tapes on the back of my car, only to come back to the scene to retrieve them and found them smashed up on the street. After getting the rolls put into new cases, the digital video was intact. I guess that gave me enough faith to stick with Digital8.
Re:no mpeg compression on tape (Score:2, Informative)
Re:no mpeg compression on tape (Score:5, Informative)
The reason mpeg compression works as you say is so that you can store essentially whole frames in less space than it would take to actually store all that information. Most of the time, two adjacent frames of a video will be fairly similar in many respects. Now the frame(s) themselves may not work well with gzip style compression, but suppose you take the second frame and subtract (using color values at each pixel) the first frame. Now you will have a lot of white space (000000h) since a great deal of the data is repeated in both frames. Now you just have to store the first frame (full) and the computed second frame (compressed), and it takes considerably less space than both full frames. To recreate the actual second frame, decompress and add to the first frame.
Of course, there's a lot more to mpeg compression than that. You also quantize the images to remove some of the less useful information, say, turning all 000001h to 000000h, meaning it will be more compressible. This action, of course, is lossy--you can't get that information back.
Digital 8 Backup Drive? (Score:2)
Those tapes are awfully cheap, and though it may be slow, I'd try it.
Re:Digital 8 Backup Drive? (Score:2)
I stayed away from digital camcorders until MiniDV got cheap. I just picked up a Canon ZR40 for $409.
Yes, I have a lot of old Hi8 tapes. I'm just going to encode them to DVD and live with not being able to play the originals again. Better than buying into a proprietary format.
Re:What I'd like to see.. (Score:2)
I'm sure the tape could hold whatever data you throw at it, it's just a limitation of the device that is reading/writing the tape.
40 Gig HD 2.5in in a handheld? Are you nuts? (Score:2, Insightful)
But yeah, never attribute to "the cold hard facts" what you can more easily attribute to a vast conspiracy theory. Absolutely.
Re:think iPod... then think again (Score:3, Informative)
but then I remembered that the drive is usually not spinning. It only spins up when loading a new song (or songs) into its 32MB (?) of memory. The HDD on a camcorder would have to spin constantly when recording or playing back, but could spin down when either just viewing or even when taking pictures. With some cache memory, you could probably avoid the spin-up delay when starting to record. (i.e. data goes into cache until the HDD has spun up). Similarly, pictures could go in the cache until its full.
sweet (Score:2)
25 hours?? (Score:5, Insightful)
I'd also be concerned about file size limitations... if grandma and grandpa get one of these and try to transfer the file to a machine running win me or something, you don't want them to deal with the 2 GB file size limitations, etc...
Otherwise, yes, 25 hours of recording time may be useful... but is worth recording with a camcorder for 25 hours?
Re:25 hours?? (Score:3, Funny)
This would be great for the pervert-who-works-at-a-hotel market, who are always looking for more recording time and an easy way to process and dump the files to a file-sharing network. A power supply simply isn't a problem here.
Of course they want a limit (Score:2)
Re:Of course they want a limit (Score:2)
Are there any open source projects? (Score:2)
Re:Are there any open source projects? (Score:2, Informative)
Another project that might intrest you is Mpeg4ip [sourceforge.net]. This project includes tools to do realtime MPEG4 capture and conversion of other videos to MPEG4 format.
And last but not least is transcode [uni-goettingen.de], They just added support for realtime capture and conversion to this program so you can output in a number of diffrent formats, including MPEG4 via Divx5 or XviD.
Re:Are there any open source projects? (Score:2)
Practical (Score:2)
I side with the poster though. I would like to have the option to buy a larger HDD (even if it's only a proprietary one), at least 4.3 gig.
Yes there is a conspiracy . (Score:2)
Otherwise you would be able to take them into a theatre and record an entire movie then post it on Kaza. :)
probably not... (Score:2)
Well
pros:
if the battery can't follow you don't need that much more...
cons:
If the harddisc is proprietary, I guess it is some attempt at preventing users from using it in movie theaters even though this is quite stupid as you may come with a friend and record half of the movie each...
BTW, if it has firewire, there could be a way to plug an external harddisc (depending on the firmware and its functionalities)...
Overheating... (Score:3, Informative)
Warranty issues with 40GB drives (Score:5, Informative)
Re:Warranty issues with 40GB drives (Score:4, Funny)
Better hurry up and tell apple [apple.com], creative [nomadworld.com], and archos [archos.com]. They've got a lot of money riding on this.
Re:Warranty issues with 40GB drives (Score:2, Funny)
Wrong, for just one example see page 2 Maxtor DiamondMax Plus9 [maxtor.com]
Operating Mechanical Shock: 60G
WARNING: Snide remarks follow.
(1) Doing something for an extended period of time means that you can't possibly be killing anything pretty fast.
(2) only a year of spinning while being moved around
One year of spinning is 8760 hours of recording.
Sounds like of a lot of birthdays & weddings to me.
Slow it's been done with a 20 Gig drive (Score:3, Informative)
Re:Slow it's been done with a 20 Gig drive (Score:2)
The camera add-on is here: JBM Camera 100 [archos.com]
Total cost would be about $490.
Wouldn't it be better if... (Score:5, Interesting)
That way the device in your hand has no moving parts, cost less and it would be easy to upgrade the storage separately.
I'm sure you read about the wireless keyboards... (Score:2)
1) I don't want the guy in the next apt. over seeing that I still can't set the time on it.
2) I don't want the guy in the next apt. over seeing the view from inside my bedroom closet.
Re:So encrypt it (Score:3, Interesting)
Encrypting the signal after you do device handshaking/negotiation is easy.
How do you handle device handshaking/negotiation? You have 2 of these wireless harddrives for recording (and your neighbor has 1 too...). How does the camera decide which receiver to send to? I'll accept that it is easy to do excryption after that... (that's fairly well understood for most internet crypto stuff). But how does this stuff decide who the proper recipient is? How do you switch from one receiving harddrive to another when the first fills up? Without accidentally sending it to your neighbor's unit?
This has to be easy enough a normal consumer to handle. No keying in a 32-digit serial number for the receiver into the transmitter. As close to automatic as possible. Press a button on both simultaneously to synch them, maybe.
Remember, this is no longer a geek toy. This is consumer electronics... it needs to "just work". Easy. Simple. And without having your bedroom home movies show up on your neighbor's tv.
You're hitting the problem with wireless security... secure *or* convenient... both together... that's very difficult.
Archos: Jukebox Multimedia. First MPEG4 Camcorder (Score:3, Interesting)
1.3 Megapixel Camera, MP4 Video Camcorder [archos.com]
Specs [archos.com]
Yes, there's a reason. (Score:5, Funny)
Hey, Apple! Are you listening? (Score:4, Interesting)
The first (Score:5, Informative)
Samsung was in the HDD Business (Score:2)
I don't think a PC HD would work (Score:4, Insightful)
Re:I don't think a PC HD would work (Score:2)
Re:I don't think a PC HD would work (Score:5, Funny)
thump thump thump thump. Here is my house. thump thump thump thump. This is my backyard. thump thump thump...
it's not the Hard Drive Space (Score:2)
No conspiracy there. It's the battery life. I have yet to see a camcorder battery small enough to carry and that can last more than 3 hours.
Re:it's not the Hard Drive Space (Score:4, Funny)
Negativity (Score:5, Insightful)
Personally, I'd love one. I currently own a Sony PC9e miniDV thingy, and it's excellent. This look better though. An annoyance I have is the capture time - basically, it dumps camcorder footage out to the firewire port at x1 speed. This device would overcome the 1x playback limitation. As the article says, it would also stop me getting through tapes at an ungodly speed. Plus there's the benefit that each clip has already been stored seperately, so no more sitting at the editing software checking the results of basic imports.
Isn't anyone pleased to see this except me? Lighten up! This thing is cool.
Cheers,
Ian
Re:Negativity (Score:3, Interesting)
1. It transfers footage at a faster rate in part because it captures less data. Whatever use I'm going to make of my images (moving or still) I like to start off with as much information as possible and discard as appropriate. That's why DV wins over MPEG4 for capture.
2. I spent a long time trying to work out an economical way of storing my DV stuff in high quality formats. I could get a DVD burner, but that's kind off expensive. CD work work, but really fiddly to store a lot of data, and CDs can be prone to decay. Maybe firewire hard drives. but that's not cheap either. Then stupid me realised I could just dump the stuff back on to the tape it came from, suitably edited! $6 for an hour of high quality video, which beats anything the Samsung can offer.
3. If I fill up my tape in mid event I can swap it for a new one within a minute. Harder to do with a HD.
So, interesting tech, but not yet useful I think.
Cheers, Paul
Batteries too small? No (Score:3, Insightful)
Target market? I bet I know! (Score:5, Funny)
Don't you see: this should be called the pr0n-camera. The mpeg4 compression means it's ready to be posted to the website without recompression, and the recording time is ... just about standard for a "feature". Anyway, now that I'm getting older, it's more time than I would need.
Re:Target market? I bet I know! (Score:2)
No, that camera was over at the Mandalay Bay at JVC's private show. It's a camera that uses DV tape and MPEG2 to record an hour of 720P HD. I took images and specs of this camera over to the Adult Video News convention over at the Sands, and the porn guys wanted to buy it right then.
Give me HD porn. Maybe it will have the effect of shaking up the business and getting rid of the skanky girls infesting US porn. I understand implant scars show up beautifully in HD.
Is there a corporate conspiracy to limit recording (Score:5, Insightful)
Of course there's a conspiracy to limit recording time. If you could record for an hour and a half or more then someone might carry one into a movie theater and record it. Therefore the public is not allowed to own a device with that capability. Any manufacture who sells one is guilty of contributory infringement.
Welcome to hell. It may be a bit warm here, but there's plenty of music and movies for sale.
-
Re:Is there a corporate conspiracy to limit record (Score:3, Insightful)
Hey I know, why not just take two peopl in with one camera each and tag team the movie recording?
Heck, the movies are SHOWN with multiple reels, why shouldn't the pirates STEAL them in multiple reels?
Re:Is there a corporate conspiracy to limit record (Score:3, Interesting)
Looking at a list of recent releases I see very few that are in the triple digits of minutes (One weekend I was shocked that no movie was more than 99 minutes long).
Yet what's the price for that movie? Oh yeah, it's still the same $8/$9/$10 you pay for a three hour moviethon like Lord of the Rings.
Check it out yourself if you don't believe me. I think studios are realizing any footage beyond an hour and a half would be best used as filler to boost sales of their DVDs. I don't doubt that within a couple years it will be the very rare exception for a movie to be longer than an hour and a half, and some will be barely over an hour.
- JoeShmoe
.
A good idea, but... (Score:2)
MPEG files (unless they're I-frame only) are not easily editable, plus the fact that none of the best software in the editing world (Avid, Final Cut, etc) will work with raw MPEG files without decoding/recoding them to something more useful.
As others have said, if they made a version of this that had a interchangeable 2.5" HD port so you could plug in whatever capacity you wanted to use, and recorded standard DV video that you could transfer out with a firewire cable, (or, in addition have direct access to the filesystem on the HD in the camera), I'd snap one up in a second.
N.
4200 RPM (Score:2, Informative)
This is one of the reasons laptops all seem so damn slow.
Re:4200 RPM (Score:3, Insightful)
It is if the video is already MPEG-4 compressed. 1.5 GB/hour is less than 500 kB/sec. I don't think there's a hard drive sold today that can't handle that.
Re:4200 RPM is fast enough (Score:3, Informative)
New gig Joan? (Score:2)
Is the anonymous reader Joan Rivers?
Seriously, is this product's OS open source? Is the specification?
No, I'm not being a zealot for the sake of zealotry. I've got an Archos MP3 player. Nice hardware, but the software is merely adequate.
An open source replacement, Rockbox, is far superior (faster, more intuitive user interface, more customizable, adding fonts, controls, configurable displays). In fact, the replacement is so good that Archos plans to use it for one of their newer models. Honestly, having run the replacement software I can't help but think of how much more attractive it makes the Archos jukebox.
But Archos hasn't released their specs or their code, so the Rockbox developers have to laboriously reverse engineer such trivia as appropriate battery levels for different models.
My selfish upshot: I can't (yet) run Rockbox on my Archos, as the Rockbox guys haven't yet reversed engineered my model. I could run it, if Archos would just release some specs. (E.g., low battery level is x volts, high is y volts.)
From now on, I'm not interested in buying closed specification hardware. It just closes off too many good alternatives.
Not the First Hard Drive Camcorder (Score:3, Informative)
The Hitachi MpegCam [mpegcam.net] was the first hard-drive camcorder, as far as I know. (Though this Samsung probably is the first MPEG4 HDD camcorder). I used it back in high school in 1997 and 1998. It looked like a large electric shaver with a camera instead of a shaving head, and with an LCD in the back. The one I used had a 340mb PCMCIA hard drive in it and stored about 20 or 40 minutes of video, I think. The video wasn't quite VHS quality -- you could definitely see the difference, though it wasn't like matchbook-sized video. It also had a digital camera feature that took higher quality pictures (at least for that time).
It was really neat for what it was at the time, though it probably didn't fill any niche real well. It didn't have a lot of storage, nor did it take particularly high quality pictures. But it was really small, and was a lot of fun to play around on. I even did part of a movie for Spanish class on it.
Corporate Consipiracy? (Score:2)
Did you ever consider the possibility that they put a small HDD in so they could lower the price point? And that once there's a proven demand for the product, they can use economies of scale to provide better features at a better price (cf, just about every technological innovation ever).
Re:Corporate Consipiracy? (Score:2)
bull. let's say i'm a consumer. i see video camera a) that can record for 60 minutes for $500, and another one for $200 more (hard drives are now at a gig/dollars) so let's just say, $700 for fun ($200 for a 100 gig hard drive is WAY exagerated)
i'd save up my money for and extra week or two and get the better model... he DOES have a point, no video camera that i know for common consumers don't last long at all... granted, battery problems, but that's just another conspiracy eh?
I know several people have already mentioned it... (Score:2)
Why Small Drive (Score:2, Insightful)
Of course they should learn to make the things modular.. But that is not yet something within their "ken."
DVD-R Camcorders & capacity (Score:2)
Commercial DVD's get around this by making multi-layer discs. Consumer DVD-R burners currently burn single layer discs only.
Buy an Archos Multimedia Instead with 20Gig (Score:2, Interesting)
Close, but no cigar (Score:3, Interesting)
With firewire you could then extract the video, either temporarily archiving on a larger disk in your PC, or dump to DVD-R's as either MPEG2, or as raw files for editing later.
For the people who complained that there's no need for longer recoding capacity than you batteries last: you're wrong. With non-removable storage you'd want to have the capacity to last until you get to a place where you could dump the contents. A weekend trip might involve several battery changes / recharges before returning to a place where you could empty the camera.
There might be a small "consipiracy" against this sort of camcorder as it would not consume tapes, but then many of the camcorder manufacturers aren't selling blank tapes. Sony likes making things that use odd or new media to get the media sales later, but not all manufacturers are in that position.
One last comment, Hitachi brought out it's MPEG-Cam years ago. It recorded MPEG-1 onto a PCMCIA hard drive that was smaller than many of the CF cards we use today. It was a little more bulky than a point and shoot still camera, but smaller than a compact camcorder. Of course it didn't have the stuff that modern camcorders have today like large zoom, image stabilization or firewire output.
Compare to iPod (Score:3, Insightful)
Many people have responded to this article discussing the practicality of including or installing a HD larger than 1.5 Gb in a device like this. Most have expressed doubt concerning the reliability as well as the gyroscopic effect.
So, my question is, if I can go jogging with a 20 Gb iPod, why can't I shoot video with a 20 Gb "iCam?"
Intriguing. (Score:4, Insightful)
Gosh, wouldn't it completely suck ass to be stuck with some idiot format that can't decide which one it wants to be, so it applies the same name to all of them, even though that they represent entirely different standards?
Wouldn't it suck even harder if you had to pay licensing fees to put that video that you shot using the camera you bought onto the webspace that you've paid for, and then be lost as to which standard they meant when they said 'MPEG-4?'
This is, of course, just the beginning. Wait until you have to pay them a licensing fee to convert one MPEG-4 format to another MPEG-4 format. Wait and see. Don't forget the most fun part... Licensing terms for MPEG-4 haven't even been set yet. It should be fun when Samsung sends you another bill.
Emmett Plant [mailto]
CEO, Xiph.Org Foundation [xiph.org]
MPEG4 playback, not recording (Score:4, Informative)
Re:MicroDrive (Score:2)
Battery drain would be my guess....
Re:MicroDrive (Score:3, Insightful)
Re:MicroDrive (Score:2, Informative)
Re:MicroDrive (Score:3, Informative)
Personally, I think that IPods are great for times when you want to listen to tunes at your desk, on a flight, in your car, etc. If I was going to work out or move around alot, I wouldn't want to bouce around with $500 hard drive. I'd much prefer something with solid state memory.
Re:MicroDrive (Score:5, Interesting)
yes they are.
they have 2 problems....
1 - horribly expensive.. I can buy a CF card of the same size for less than 1/2 the price of a microdrive.
2 - horribly delicate.. pick up the microdrive and lightly pinch it... Oops.. it's dead now.
we used to use microdrives here for some data recording... we went through 10 of them in 3 months.. while the CF cards dont fail.
Re:MicroDrive (Score:2, Interesting)
I believe you maybe mistaken. Just checking on Amazon.com the cheapest 1GB Microdrive is $299.88. While the cheapest 1GB compact flash card is $564.99. Sure you'll be able to get them cheaper if you shop around but for the moment at least the microdrive is significantly cheaper than Compact Flash.
In my personal experience microdrives are tough enough. I've dropped my microdrive twice and it has survived perfectly well. But you do of course have to take care of them just like any electronic equipment. But they are certianly not as delicate as you suggest.
Re:MicroDrive (Score:5, Interesting)
Glad to hear they're living up to the illustrious reputation of their predecessor [nvg.ntnu.no] then...
Cheers,
Ian
Re:MicroDrive (Score:2)
huh? I paid $250 (USD) for my 1 GB microdrive, a 1GB CF if well over $600 USD last I checked.
2 - horribly delicate.. pick up the microdrive and lightly pinch it... Oops.. it's dead now.
Simple fix, don't it's not that hard to remember.
we used to use microdrives here for some data recording... we went through 10 of them in 3 months.. while the CF cards dont fail.
CF card will and do fail, they are generally more rugged, but not immune to failure.
Re:1.5 Gig limit (Score:2)
I would imagine that it is definitely possible. However, don't expect reliability. This unit probably has an undustrial-strength drive that will survive under the most gruelling conditions. I would imagine that the clearance between the heads and the platters reduces the areal density. The hard drive industry needs to come up with a standard for this type of drive so people can "hack" this functionality while retaining durability. There are too many portable devices out there that could use a hard drive (automobiles, especially).
While they are at it, I'd like to see an open laptop standard as well. Stick a mini-itx mobo in an open laptop chassis and shove in a compliant LCD monitor...
Re:3 Reasons No Large HD (Score:2)
1. iPod
2. iPod
3. iPod
What's the use of a tiny camcorder if you can't use it?
Re:3 Reasons No Large HD (Score:3, Interesting)
The microcontroller and the display don't use much space or power. The only thing which adds to size and weight is the accumulator.
Cameras sport things like lenses, sensors, and a real display, which need more space, and they need a lot more processing power (especially
, when encoding in MPEG4), which in turn require more space for the energy storage.
> What's the use of a tiny camcorder if you can't use it?
Admittly, the use is quite limited. When you want a tiny, fast copyable and computer-editable video, go for it. When you want to record more than 1h of video without pit stop at a PC, buy yourself some other device.
Re:Reason for small drives (Score:2)
Re:Spinning disk in a camcorder (Score:2)
Easy solution: install two hard drives perpendicular to each other. Voilà, instant gyroscopic stabilization, and less jitter.
Re:Spinning disk in a camcorder (Score:2)
Re:the real reason these things only store an hour (Score:2)
N.
Re:mpeg4 recording... been done already (Score:2)
Re:Set Top Divx (Score:2)
Fine, make me do the math.
1.5GB = 1536MB = 1,572,864KB = 12,582,912Kb.
60 minutes = 3600 seconds.
3495.25 Kbps. That's audio AND video. It doesn't mention if/how it compresses the audio (I hope MP3), so we can only assume that the audio is compressed to maybe 500kbps. Which leaves about 3,000 kbps for mpeg-4 video, which is just way too much. Your average 2 CD divx DVD rip uses megabit video if you're lucky. Granted, they're letterboxed while this will probably be 4:3, but still, you wouldn't need more than 2,000 to surpass the quality of your favorite divx rip.
If this thing is worth it's salt, it'll allow you to change the audio and video bitrates to your liking, a la digital cameras. At the very least it should have different settings (640x480, 320x240, megabit video, etc) you can pick and choose from.
If not, move along and pick up something designed with the techie in mind, if/when such a device should be marketed.
Re:Set Top Divx (Score:2)
If it's good enough for an iPod... (Score:3, Insightful)
Gyro action (Score:3, Informative)
As others have pointed out, modern drive are pretty robust. The iPod only spins up when it's reading a song into memory, but even so it has to be able to handle someone jogging while that happens. I think personal music devices are going to have a lot worse motion issues than camcorders (where the desire is to hold it steady even if that is not what always happens...)
Re:stupid question (Score:5, Interesting)
Uncompressed DV-format video takes up 3.5 mb/sec. That's about 12.6 gigs/hour. The DVD-Rs used in camcorders aren't normally full-size -- in fact, they're only 2.8 gigabytes. So now we're looking at 4:1 compression, which is about what one gets when compressing to MPEG. So 1/4 the space at 1/4 the size gives us about the same as we started: one hour.
One might ask why DVD-R palmcorders don't use full-size DVDs. There are two reasons for that. The first is spin stability. Torque being equal to the cross-product of force and distance from axis of rotation, a larger disc radius means much greater stability problems. Back in the days before 4 MB CD-R buffers, you might've noticed that your CD-R drive was much less shock-resistant when burning the last half of the disc rather than the first half (or the other way around, I don't quite remember how it was). CD-Rs burn from the inside-out (or vice versa, like I said, I just can't remember right now). When the CD-R gets to burning the outer portion of the disc, its much less fault-tolerant. Disable the cache of your CD-R or hook up an old one to test it out if you don't believe me.
There's also just the issue of disc size. People like their consumer electronics to be small. Small consumer electronics means lighter weight, less baggage, easier to put in a carry-on for that three-hour New York to Orlando flight. It also means that there's less to lug around Disneyworld, especially when you've got to take a diaper bag for Junior. Lot's of people owned camcorders ten years ago, but they were big and didn't take them out. Now they're small, so people take them everywhere, which means that more people see them everywhere, more people buy them, etc. So I guess maybe there's a conspiracy to make small consumer electronics, but I'm not complaining.
At this point you might say "Ah-Ha! But miniDV also has the 1-hour limit. So did older Hi-8 and mini-SHVS tapes. What gives there, huh?" The answer is pretty simple. Those standards all spring from larger ones. miniDV springs from full-sized DV (with up to 180 minute capacity). Hi-8, though not identical, is derived from VHS. The origin of mini-SVHS and mini-VHS should be obvious. With the possible exception of Hi-8, the mini-formats exist so that they are interoperable with the larger standard. Sure, maybe it'd be possible to re-design miniDV so that it would have higher capacity. But that would make it incompatable with full-DV -- a compatability that not only drives down costs (one standard) but also makes it appeal to the professional and semi-professional market (you can't fault electronics companies for being good businesspeople). There's some simple math here. MiniDV is about half the size of full-DV (in terms of tape length). If max DV = 180 minutes, than max miniDV should equal 90 minutes (which is the case). Half the tape, half the length. Same goes for mini-VHS -- a standard that was invented to keep portability high and still allow tapes to be played in regular VCRs (wasn't that cool -- and talk about something that might encourage piracy!).
The miniaturization of the standards occurred because electronics companies know that consumers will put portability ahead of media length. Sometimes it's a pain -- weddings, bar mitzvahs, Junior's debut as Hamlet -- often last longer than an hour. But for most consumers, the portability and size are well worth it (check out bhphotovideo.com to see how big full-size DV/SVHS camcorders are).
Corporate conspiracy hogwash. The limits in each case derive from standards, and nobody was thinking of any sort of conspiracy when developing the original standard. To think that the media companies think that far ahead is giving them way, way too much credit. It's a little akin to saying that backup manufacturers are keeping their capacity low relative to hard-drive/server capacity so that people have to buy multiple backup systems. That's pretty crazy. Media are limited. Get used to it.
As for the size of the hard-drive in question, I think I can shed some light on that. As a consultant who works largely with design/graphics/art firms, I work with digital video systems a lot. Hard drive fault tolerance is a huge factor -- when you're streaming video, a slight failure translates into choppy video, dropped frames, or worse (like a loss of timecode that renders subsequent footage near-useless). A variety of professional companies make expensive portable FireWire drives that you can connect to a camcorder to capture footage directly to disk instead of to tape. These systems have huge (often 25+ meg) cache. Some of my clients have invested in these systems and been extremely disappointed. Anything more than a smooth walk causes dropped frames or corrupted files. Regular hard drives, even laptop drives, might be able to stand up to the stress for occasional disk access (such as with an iPod). But for continuous write, much higher standards are necessary. Keeping the cost down was probably a big impetus to only having a 1.5 gig drive -- again, most consumers really don't need more than an hour of video.