Sony's Double Density CD-RW Drive Reviewed 163
Boone^ writes: "Sony's newest CD-RW, the Spressa CRX200E-A1, is actually a DD-RW, meaning that it (re)writes on DD media that's capable of 1.3GB of data storage using the new Purple Book standard. Sony adapted the ISO 9660 format, but they narrowed the track pitch from 1.6 to 1.1 microns and shortened the minimum pit length from 0.833 to 0.623 microns. I found some benchmarks of the new drive on CDRLabs.com. So, is this just a technology hack until DVD-RW prices come down? This drive seems like a steal with a $250 USD sticker compared to the recordable DVD options." If it's on Pricewatch, it's not vapor anymore. You may have to look around a while for the double-density media, though -- and if that doesn't catch on, you'll be glad it's also a regular CD-RW drive.
Dreamcast? (Score:1)
Since all game consoles are sold without making any benefice, selling a device that can break the copy protection of a major competitor, is a brilliant move to cut off any revenue they make selling games and to force them out of the game console business.
Off course this is an impossible scenario since Sony is one of the major advocates for intellectual property protection.
Re:Somebody do a RIAA infestation check (Score:1)
And as we all know, systems billed as "preventing illegal copying" prevent legal copying along with it.
Re:Remember 2.88MB floppies? (Score:1)
Too little, too late (Score:1)
I can't really get excited about 1.3G on a new, incompatible CD when Constellation 3D is so close to releasing product for Fluorescent Multi-layer Disc (FMD) [c-3d.net] technology, which can hold 20 - 100 GB on a CD-size disc.
According to the site, they're already working on WORM, and future disc capacities are predicted to be greater than 1 terabyte. With those kind of sizes, re-write ability shouldn't be a real issue for awhile. They're also saying there isn't a lot of difference in the drive technology from CDs, so drives will be similarly priced. I can't wait.
Re:c3d (Score:2)
Don't you mean "interesting to steal"? Shame on you for trying to pass this off as your own writing. Next time, try giving credit [pctechguide.com] where it's due.
dd media available at Fry's (Score:4)
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:1)
- A.P.
--
Forget Napster. Why not really break the law?
Re:Hole punch (Score:2)
Bill - aka taniwha
--
Re:Remember 2.88MB floppies? (Score:1)
It's a nice idea, and if it takes off and writable DVD doesn't, it may be good enough. Then again, as commodity hard drives are exceeeding 80GB, it gets increasigly difficult and discouraging trying to back them up. Writable DVD is in flux right now, and as soon as everyone agrees on a standard and the price of media and hardware comes down, double density cd will be gone, because the new standard will be dvd. It's the same situation when cdr drives came out.
And then there was the tandy 102 (Score:2)
oh, and for the *really* bizarre, someone in the area (San Diego) actully set up a bbs running on his 102 . . . hmm, that may have been where I got the program for the xt . . .
hawk
Re:Betamax, MemoryStick, and now "DD-R/ddRW" (Score:2)
There are lots of factors, the size wasn't exactly convenient, and they were heavy. Players can get louder than with DVDs due to the drive power needed to spin them.
I don't know when it started, but LD players did end up having dual-side play. Apparently it made the players a bit taller.
I still get a few LDs mainly because they are now cheaper used (sometimes new!) than DVDs. For stuff that has a progressive/anamorphic/DD5.1 DVD I just get the DVD though as that is much better though. My player is a combo DVD/LD player so that cuts out a few considerations for me.
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:2)
You're confusing Betamax with Betacam/Betacam SP. Different formats - the only commonality is tape width and the cassette shells at the smallest size. The magnetic coatings are different, the tape speeds are different, and Betacam usually uses a larger form-factor cassette as well.
And for that matter, good luck finding a non-Sony Betacam deck. Just because it's "standard" doesn't mean it's not proprietary (e.g. Microsoft).
-Isaac
Betamax, MemoryStick, and now "DD-R/RW" (Score:4)
Remind me, again, why I would possibly want this over one of the DVD-based formats?
Doubling capacity doesn't cut it anymore - in storage, it's only worth making the leap for an order of magnitude.
-Isaac
Re:Hole punch and Beagle Brothers (Score:1)
Something along the lines of that single sided floppy drives were different. Apples, for example, read the bottom of the disk, while Ataris, for example, read the top side. Single sided disks are tested for one side to be reliable. So which side do they test?
It was funnier when I read it the first time with the semi-poorly drawn images of the two Beagle Brothers, but I think it was not so much what side was capable but more that the magnetic properties wouldn't bleed through to the other side (though it never happened with any of my floppies).
--
Re:Karateka (Score:1)
--
Re:Hole punch (Score:1)
At one point I used to work for a computer lab at a university around the time when the AOL floppies were coming out strong.. people would come up to me and ask why their file can't be read, and I'd look at the disk and shake my head...
--
Re:where to get it (Score:1)
--
who needs drivers? (Score:1)
Re:Compatibility (Score:2)
Re:Hole punch (Score:1)
Not bad getting two jokes for one, though.
Re:So, does it take the same media? (Score:1)
If you have the data in a format that is not quite as accessible as CD-R, then there is a possibility for atleast a longer delay getting access to the data. Do you have to wait 1-2 days to get a new drive shipped and installed, because the local shops do not carry this strange drive? (Of course this also applies to the various tape systems out there also.)
Re:Dreamcast? (Score:2)
The Dreamcast uses what's called a GD-ROM. The GD-ROM holds about a Gigabyte of data. The storage itself isn't copy protection, as it's simply a way to squeeze more data onto a disk.
The layout of a DC disc is broken up into two tracks. The first track consists solely of a four second audio snip - any kind, even silence. The second track is simply a CD/XA data track using a standard ISO9660 file system with the first 16 sectors of the track used as a bootstrap.
So basically, if you had a Gigabyte CD, you could make Dreamcast discs. GDROM discs are perfectly readable in standard CDROM drives; you need no special hardware to read them.
-- Give him Head? Be a Beacon?
Re:Hole punch (Score:1)
Go you big red fire engine!
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:1)
readable on CD drives? DVD-ROM drives? (Score:1)
Re:readable on CD drives? DVD-ROM drives? (Score:2)
Sony, Phillips mum on anti-copying misfeatures (Score:1)
In a better world, this would be turn out to be something relatively toothless, like the "copying allowed" bit that's present (though always ignored) even in the current CD Audio spec.
But odds are it'll be something horrible in the hardware. Then I won't mind that this format is probably going to die a lingering death.
Is anybody going to come out with a format that's as free as CD-R with more capacity?
Ironically, if anyone does it's going to be a country as un-free as China, which makes a lot of $$$ off SVCD.
Except that the Chinese Communist Party and the RIAA would probably get along too well. They have hobbies in common-- like the whole ruthless-monopoly-on-power thing...
This would take off w/ consumer DVD player support (Score:2)
Another one is that it doesn't seem to be carry all the encryption and other baggage that DVD has: you don't need a special, expensive "for Authoring" drive and media to get around all the copyright baloney. No watermarking. No lossy compression.
I mean, DVD-R is so crippled that the latest thing in the ripping community is making "mini-DVDs [doom9.org]", CD-Rs burnt with (a few minutes of) DVD-quality video.
If you have a multi-disc DVD changer (and more and more geeks do), then you can spread the movie out among a few CD-Rs, and have an almost seamless transition. There are even firmware hacks to make initially uncooperative players support the format.
If equipment makers get on the bandwagon, we could have a more lightweight format for VCDs, and even double-length audio CDs. I hope it takes off.
8cm Media? (Score:2)
--
Re:Karateka (Score:2)
W
-------------------
Re:Hole punch (Score:1)
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:2)
Also, I have many friends with multi-GB mp3 collections. Backing up their collections takes all day, literally. With a 1.3GB disc, it would only take half that time, not entirely unuseful.
And what about those home movies that you made with your spiffy new digital camera? Wanna have them recorded at full quality but don't have the hard drive space to keep them all at once? No problem...you can still view them easily on your computer and have them neatly indexed, just store them on a few DD-RW, or whatever the official name is.
So, yeah, I can see where this could be pretty dang useful for a lot of people.
Re:it's gonna be HUGE!!!!!! (Score:1)
If you can find one for about $40-$50, it's a pretty good investment. This is assuming that you still use floppies, though.
"I may disagree with what you have to say, but I will defend to the death your right to say it"
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:1)
Re:Hole punch (Score:3)
For those who don't recall (or weren't around) you
could use the other side of a 5 1/4 floppy by cutting out the write protect tab and flipping it over.
Re:Hole punch (Score:2)
Re:Hole punch (Score:2)
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:2)
The same reason you want memory stick. ha ha.
Re:Karateka (Score:1)
Re:Remember 2.88MB floppies? (Score:2)
Hmph. (Score:1)
Re:Remember 2.88MB floppies? (Score:2)
$10 per 2-pack, according to another post. 1500% is a pretty large fraction. Note that's more than the 8x difference I cited for 2.88MB vs. 1.44MB floppies.
> drive itself is competitively priced with existing CD-R only drives
$250 vs. $80 [pricewatch.com] -- that's stretching the definition of "competitive". And again, that's more than the 3x difference cited for floppy drive prices.
> this drive is bi-format
2.88MB drives had that; it wasn't enough. My money still says I won't be eating my shoe anytime soon.
cheers,
mike
Remember 2.88MB floppies? (Score:5)
And after you went to all that trouble, your stack of 600 floppies was now... only half as high! 300 floppies!
If 700MB isn't enough, then 1.xGB won't be that great, either. Certainly not enough of an improvement to throw away compatibility and incredibly low commodity prices. If this sells more than a token number of units, I'll eat my shoe.
cheers,
mike
Re:No, No (Score:1)
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:1)
A company the size of Sony can afford to throw a lot of ideas against the wall to see if any stick. And since lots of other companies license components from Sony, it's quite possible that you'll see this technology in things other than Sony products.
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:1)
There's a nice overview at http://www.palsite.com/tapes.html
Re:Hole punch (Score:2)
Another consideration was that, after a while, single-sided disks disappeared from the market. With only certified double-density disks available, you might as well have punched them into "flippies" as you were wasting half the available space if you didn't.
The first box of disks we bought in 1985 for our then-new IIe was a ten-pack of double-sided TDKs (for about $27, if I recall...$2.70/disk for 280K if you punched them, 140K otherwise). I still have some of those disks, and they're still readable. By comparison, I've had 3.5" floppies go bad just days after they were written.
If I were a rich man ... (Score:1)
Re:No (Score:1)
It sucks to be a pedant, but is sucks more to be the target of a pedant.
Re:No (Score:1)
Sure enough... (Score:3)
Re: (Score:2)
Re:Remember 2.88MB floppies? (Score:1)
15/1?
Re:dd media available at Fry's (Score:1)
No thanks (Score:5)
I'm still waiting on the consortium between the NSA, IBM, Microsoft and Sun to form so I could have a 1gig chip implanted in my head that plugs into any outlet which is connected to a 1terrabit drive created by clustered Clariion's which stores the data in my head for STORAGE PURPOSES ONLY thank you.
;)
Re:Hole punch (Score:4)
Re:it's gonna be HUGE!!!!!! (Score:1)
one thing about it that is nice is that when using normal floppy disks it isn't the loudest contraption known to man.... is there something in the floppy drive spec that says 1.44 mb drives have to make the same floppy access noises as apple 2's?
i didn't get the lsd-120 drive willingly though.... it was forced upon me by my school's technology program.... and actually i've loaned mine out all year to another student who is too lazy to get hers... she has lsd-120 disks
Re:Betamax, MemoryStick, and now "DD-R/ddRW" (Score:2)
I wouldn't blame the failure of Beta to Sony's lack of marketing. I'd blame it on VHS decks being very significantly cheaper, the fact that Beta tapes only held an hour's worth of video, and that the quality was good enough for taping broadcast television.
Laserdisc never had mass-market appeal because the disks were much more expensive than VHS, because most people didn't care enough about the quality to drop the money, and that therefore most movies didn't see the light of day on LD and LD rentals are basically unheard of. DVDs are catching on because they're cheaper and you don't have to flip the disc [as often].
Dreamcast (Score:1)
where to get it (Score:1)
Re:Hole punch (Score:2)
What you are talking about is doubling the useable sides, not density.
You used to be able to get a "special" hole punch (out of the back of Computer Shopper, back before it sucked. Damn internet!) that put an extra hole in a "Double Density" (720k) floppy so that the drive would see it as a "High Density" (1.44M) floppy.
It didn't work worth a damn (my dad bought one, he's pretty cheap) because the "coercivity" (amount of energy required to make the magnetic state change) of the media is different.
The thing that makes this all super on-topic is that Sony created the 3.5 in diskette!
-Peter
Hole punch (Score:5)
-Peter
PS: It's a joke. If you don't get it just move on.
-P
Re:Hey, can my lil old dreacast read these, ie (Score:2)
I may me an idiot, but I'm well aware of 2 things. 1) that an .iso format is in fact just a dump of the disc contents that matter. 2) that the formats in which I've been able to find DC software CD images (legal projects based stuff), are not just dumps of the disc contents, but rather some information which the intended burning software interprets into track divisions, track types, and track data, for which I have no software that makes sense of it.
Re:Hey, can my lil old dreacast read these, ie (Score:2)
Thanks again,
-Daniel
I doubt it... (Score:3)
Hopefully DVD-Rs will follow suit, and become functional in regular DVD players and DVD-ROM drives. Again, the major advantage is the fact that there's already a huge number of DVD devices out there in the wild. That's why everyone wants a writer - to be able to write discs for a device they already own.
This format will fail... if not soon, in the long run. The problem, is they've put the cart before the horse - they're making a writer for a format that doesn't have any real world existance as of yet. There's no appeal - larger storage is already available in DVD-Rs, and the new higher density CD doesn't have any compatability with existing CD devices. Plus, it's a different kind of media, so you can't even use your old CD media in this device. I can't see a single reason to pick this new format for anything... the ONLY bright spot is that the writer doubles for a standard CD writer, but then why not just buy a regular CD writer?
Thus, in my opinion, this format is doomed. Standard or not.
Re:dd media available at Fry's (Score:2)
Didn't Sony pioneer the Compact Disc?
DVD RAMS? (Score:2)
Dead end - very likely. (Score:2)
I work in an industry where files & data sets routinely range from 400MB to 32GB.
For archival and client data purposes we use 1-4 CD's for stuff under 2GB & tape for larger sets & permanent archive.
With 30 years of data in the vault, we tend to stick to 'long term' methods & only upgrade storage media types on a 5/6 year time frame.
Even with the advent of DD-CDR's we are unlikely to change over as we would end up posting clients data on media that they can't yet read.
Halving the number of CD's stored or posted isn't worth the data portability issues created.
By the time DD-CDR's have matured and become common, we would be looking for the next great portable media with a capacity of 2-4 GB's.
This kind of approach would be pretty common in many established industries & government departments.
The exploration industry still embraced CD-R's wholeheartedly when they first appeared, quite a few offices still have original model KODAK external SCSI single speed CD burners, from the days when these weighty beasts cost a few grand $US.
Re:Standards (Score:2)
True it hasn't taken off in the US, but if you've been to Japan lately, its a different story.
it's gonna be HUGE!!!!!! (Score:3)
Re:Sure enough... (Score:2)
They should take a lesson from Topps and include a stick of gum. It's much more useful than a Sony MemoryStick.
Somebody do a RIAA infestation check (Score:2)
========================
63,000 bugs in the code, 63,000 bugs,
ya get 1 whacked with a service pack,
I didn't know Philip Jose Farmer (Score:2)
Or am I too old for anyone to catch this [fantasticfiction.co.uk] reference?
Re:Remember 2.88MB floppies? (Score:2)
$10 per 2-pack, according to another post. 1500% is a pretty large fraction.
The other post was probably citing DD-RW prices, so you should compare to CD-RWs, which retail for about $2.50 each. That's 200%, not 1500%.
As for comparing CD-R to DD-RW, you're repeating many of the same arguments of CD-R v. CD-RW. You need to burn a CD-RW about twenty times before the cost of media breaks even with a CD-R. You need to burn a lot of CD-RWs before the cost of the drive breaks even with CD-R.
DD-RW is priced competitively with CD-RW. I doubt that DD-R will be priced competitively with CD-R.
Re:Remember 2.88MB floppies? (Score:2)
The only problem with this new Sony drive is that it's a Sony. Every Sony CD burner I have encountered has failed. In my experience at least, they suck and I'll never buy a Spressa drive again. Ick!
Re:Betamax, MemoryStick, and now "DD-R/ddRW" (Score:2)
I have a side-flipping model (Pioneer CLD-3060), they have been around forever. Pioneed even made a 2-drawer model (LD-W2 I think), where each platter got each side played. But side-flipping added a lot to the cost, and AFAIK most LD people didn't have that feature.
Re:Betamax, MemoryStick, and now "DD-R/ddRW" (Score:4)
I have been collecting laser disks since the late '80s, so I know a little about this.
Back in The Day, LD was a STEAL. Years ago a pre-recorded videotape was often $90+. Yes, even popular movies. VHS wasn't always a buyer's market, it started as a renter's market. You were expected to get your VHS fix from the neighborhood rental store, and tapes were priced insanely high, because stores bought them, not individual people.
LD, on the other hand, was priced for collectors. In 1989 I could buy Die Hard on VHS for $100, or I could buy it on DVD for $50. Many DVDs were only $30-40, when the video tapes cost up to twice as much! Us laser disc people were smug up until the late 80s, and rightfully so. We were getting a good approximation of the DVD experience years ahead of schedule, and for less money than a VHS habit would have cost.
Eventually the studios figured out they could make a forune from selling $10 VHS tapes of hit movies in supermarkets, and at this point the LD price advantage disappeared. For the most popular software, anyway -- but there were still lots of more obscure movies and specials you could get on LD far cheaper than VHS.
There was never a software scarcity problem with LDs, either. I could find any movie I wanted, it's not like only the top 10 were pressed onto LD. There was also a lot of educationa;/reference programming... I have this great Apollo project documentary with zillions of stills and lots of footage. That was just never released on VHS that I know of.
Of course things are changed now, but Back Then LD was a sweet thing. I got about 10 good years of use out of my $1000 LD player.
LD ultimately failed because people didn't have the tolerance for disk-flipping, I think. It was also poorly marketed. DVDs succeeded because they are smaller, have less flipping, have better image/sound, and are usually less expensive too. I've switched to DVD and I have never looked back, though there are still some LDs that I continue to use -- Star Wars, for example.
I will always miss that weird laser disc smell, though... the color printing on the jacket, and the plastic and adhesives of the disc... kind of like a new car smell. Good memories.
Re:Remember 2.88MB floppies? (Score:2)
And as others have pointed out, the DD-CD format has a useful niche already. They'd be great for VCDs, Terapin recordings, and DiVX:-) Furthermore, Sony's double-wide disks would be an ideal carrier for the Chinese DVD-patent-busting Super VCD [eetimes.com] format.
c3d (Score:4)
With conventional optical disc drive technology signal quality degrades rapidly with the number of recording layers. This is principally because of optical interference - noise, scatter, and cross-talk resulting from the fact that the probing laser beam and the reflected signal are of the same wavelength and the nature of the highly coherent reflected signal used. The signal degradation exceeds acceptable levels with the result that no more than two recording layers are possible. However, with fluorescent readout systems, the quality degrades much more slowly, and C3D believes that up to 100 memory layers are feasible on a standard sized CD.
The design of the discs is based on so-called 'stable photochrome', discovered by physicists and engineers in Russia. This is a transparent organic substance whose fluorescence can be triggered by a laser beam for sufficient time for it to be detected by a standard photoreceiver. This characteristic makes it possible to superimpose transparent layers on top of one another, and to 'write' information on each level.
Once the fluorescence is stimulated by the laser light, both coherent and incoherent light are emitted. The latter has waves that are slightly out of step with each other, and the exploitation of this property is central to C3D's technology. The out-of-sync fluorescent light beams allow data to be read through different layers of the stacked transparent discs, one beam reading data from the top layer at the same time that others are penetrating it to read from lower layers. The result is the twin benefit of huge storage capacities and greatly improved data retrieval speeds.
Well, just some information that I thought would be interesting to add.
Re:Remember 2.88MB floppies? (Score:2)
haha (Score:2)
"Can anything other than the dd-r drive play these? No? Well then it's a dead-end and will never be supported! fuck it!"
uhm, scuse me?
When dvd's first came out, how many times did I hear "Why can't we record on it? It's no good if we can't record on it! It'll never catch on!"
(Not like I've recorded or even used my vcr in the past year..)
If Sony doesn't fuck up the license terms for this, like they have with so many of their 'techs' (minidisc, memory stick, etc..), then many cd-rw drives will be able to incorperate this tech and it will be there if you need it.
Hello? It uses the exact same lasers mcfly!
The only diff is that they slow down the rotational speed and make the pits smaller.
I bet cd/dd-rom drives (read only.. like cd-rom drives) would cost exactly $5-10 more than regular cd-rom drives.
repeat after me, "It's all about the chips"
Hell, I bet some drives could have a firmware upgrade to support this, as long as the program controlled the relevant parts.
-since when did 'MTV' stand for Real World Television instead of MUSIC television?
Found a place selling it... (Score:2)
Re:readable on CD drives? DVD-ROM drives? (Score:2)
You could, I don't know, maybe try reading the linked-to article?
I'll play nice and answer your questions though--
* They aren't readable in normal CD-ROM drives.
* I doubt a firmware upgrade will make them readable in DVD-ROM drives.
Otherwise, the drive itself will read and write both CD-R, CD-RW as well as -R and -RW versions of this new format. So, compatibility aside, there's no real reason to pick another CD-R drive over this one since this one is priced almost the same. My only legitimate reason to hold off is that I'd like to buy a SCSI version of the drive. =)
Re:Betamax, MemoryStick, and now "DD-R/RW" (Score:2)
Easy. This is here right now. Writable and re-writable DVD media won't be here for some time (read: lots of standards fighting it out for your pocket book). The only VIABLE writable DVD medium so far is the one offered by Pioneer (which burns normal DVD-discs, AFAIK, no re-write capability).
As for it being packaged only with Sony PC's, wrong again-- check Pricewatch for prices that are sure to make you wonder why you'd pay MORE for a CD-R only drive. It's a standard (sort of, Purple Book implies you can atleast license it or some such drivel), so it's likely other producers will adopt it since (based on the price of Sony's drive) it appears cheap to implement. Finally, where again is the need for a stand alone player, considering (had you read the article the story linked to) the Purple Book standard defines it as a DATA ONLY medium (no music formats ala Red Book). The only stand alone device you might want is a dedicated non-writable drive, and again, given the low price on Sony's offering, I don't see this being expensive to implement.
Re:Dreamcast? (Score:2)
Incorrect. The first area is a low density, standard CD format of about 35 megs/4 mins. Then there's a space containing no data, and then the high density area begins (1Gig/112mins).
The low density area must contain two tracks, a Mode 1 and a CDDA, both containing at least 4 seconds of data. The high density area must also contain two tracks, both Mode 1. The first of which must contain at least 4 seconds of data. The second high density Mode 1 track contains the bulk of the data.
So basically, if you had a Gigabyte CD, you could make Dreamcast discs. GDROM discs are perfectly readable in standard CDROM drives; you need no special hardware to read them.
Incorrect. When you insert a GD-ROM into a standard CD drive, what you see is the 35meg low density area only. You cannot read the high density area in a standard CD drive.
It is a standard... (Score:5)
might i ask why the hell this is funny? (Score:2)
Re:Anyone in the know? (Score:2)
Re:Anyone in the know? (Score:2)
Re:Anyone in the know? (Score:2)
No (Score:4)
Although it's not clear just how this will be affected by various DVD initiatives, the reason to go for it is because it's standard, it's cheap (both for the drive and the media), and it's available. Eventually, I'd say you could expect certain classes of CD usage today to migrate to this technology. Just because we have DVDs today doesn't mean that manufacturers are going to abandon the CD format altogether. Even though we have CDRs, floppies are still useful. Eventually, we may see regualr CDs go the way of 768 KB floppies.
Re:Standards (Score:4)
I have not yet seen any other vendors developing drives to this standard, which means mass adoption by users is still a long way off. Let's hope for Sony's sake that they timed the introduction of this product well enough that it will not imediately be suplanted with lower cost DVD-ROM drives which should be coming out soon.
As it is, this new drive seems to be the Ink Jet printer of the CD-ROM universe. Vary cheap hardware, on which the vendor either brakes even or takes a loss, then vary expensive media on which the manufacturer makes a killing.
--CTH
--
Comment removed (Score:4)
New Media (Score:2)
Seeka
Re:c3d (Score:5)
The photochrome is called bacteriorhodopsin, which is a seven helices protein with an attached retinal molecule. It's about 4 nm long. When exposed to 570 nm (yellow-green) light, it starts a cycle of definable photointermediates which vary from a few fractions of a picosecond to tens of milliseconds. There are also several latched or nested photocycles which can remain transient for years. Some genetic variants even have the capability to run several photocycles at once. It's quite a remarkable molecular engineering feat of nature via natural selection of billions of years fromthe tiny blue-green bacterium H. salarium (used internally for photosynthesis via proton pumping over the cell wall and internal membrane).
Our group was able to create a bR coated CD which had over 500 layers of
The BER (bit error ratio) was around the rate of CDs, and with error correction, it was almost a usable mass storage drive. We attempted to get production funding, but we could only create a few working models for a few highly specilized companies mainly because of the cost of the laser. As I mentioned, bacteriorhodopsin is controlled by wavelength, and we needed at least 3 different wavelengths corresponding to the absorption maximums of the different photointermediates. This means blue (400 nm) for erase, yellow (570 nm) for page select and red (675 nm) for write/read.
In our experiment, we used a single laser for all three wavelengths and we used optical parrametric ossciliation and frequency doubling/mixing to get the three colors using crystals, and we used a Q-switch to change colors in less than a few microseconds (e.g. access time). This was fairly complicated although the use of discrete components and a diode pump laser made the optical assembly as small as a large laser pointer. It was still costly as it required special optical crystals to do the OPO and frequency stuff. Currently, these crystals are expensive in low quantities, cheap in moderate quantities and expensive in high quantities because it is difficult to grow once the crystals get so large, and it isn't economical to grow tiny batches. For production, of course, we would need very large quantities and thus the drive wouldn't be cheap enough for the consumer market.
There are alternatives, for example. A pure semiconductor solution utilizing multi-color diodes would be optimal. There is a company currently producing blue laser diodes, and soon green, but these are still expensive and don't have a high life. So, fundamentally, we were limited by other technologies.
Currently, our group does have a production license from a major storage manufacture and we are developing a storage and processing device based on bacteriorhodopsin in solid form in sol-gel (aerogel) suspensions. This looks the most promising and it will be affordable to commercial markets as other solutions which provide the same features are much more expensive and have a much large footprint. We're likely to market to large datacenters and companies with lots of data which needs to be online in a fast and associative system, and where space is a concern.
I really think there is going to be some great things in terms of storage technologies as soon as diodes and VCSELs bridge into more wavelengths (read: WDM will force this) and have faster switching times. As it is, we're only using a fraction of the several hundred thousand terahertz bandwidth of even a single wavelength, let alone more than one. Optical is definatly the way to go.
Pretty cool stuff, especially when you see a movie playing off of something which was once only a thought and a proof-of-concept few bits in a lab.
Re:Somebody do a RIAA infestation check (Score:2)
Maybe... (Score:3)
With any luck, this is the technology hack that will force DVD-RW prices to come down!!
Consider that if you were a DVD-RW manufacturer, you wouldn't want the public wasting their time falling more in love with their CD-R/RW formats instead of upgrading to your DVD-R/RW format, would you?
Competition is supposed to be a good thing, right? A $250 price tag ($217 on Pricewatch!!) on this model really ought to rattle some cages over on the DVD-side of the street. Let's hope this helps knock some of those DVD prices down to more acceptable levels. :-)
Purple Book!?!?! (Score:5)
Or maybe Bluish Green With a Hint of Yellow Book.
Nope. Not particularly interested. (Score:2)
Sorry, this reeks of proprietary. It'll die the way 2.88 MB floppy disks died. Good riddance.
Just like the MiniDisc (Score:2)
You see, if you went out and bought a nice fast 52x CDROM yesterday, spent the money, and then you get one of these drives, then what use is it? I've got 2 CDROMs in most of my machines, but this means I'd have to have a $250USD drive in each.
Oh, and the only thing the extra space would be good for would be Audio, MP3, MPEG, DiVX, etc. If you've got an MP3 player (portable.. not on your PC) then you couldn't use the extra space.
Anyways, though Sony does come out with some very very decent stuff, I think this new drive is just like the MiniDisc. Extra features (more space, higher quality) but after a while some equipment will support one standard and the rest will support the other standard. It won't affect most people because major computer manufacturers will not use one type (who knows which standard they'll pick). Either way, the DD-R media had better be less than 2x the price of a normal CD-R and easy to get... otherwise the format will fall on it's face.
"Life is a donut.. it goes around and around, but there is always a hole in the center."
- Anonymous