Easy Fix for Scratched CDs 328
NotQuiteOnto writes "Ben Hayes (om3ga) has performed an experiment as to the best method to fix scratched CDs. He set himself the criteria that it can't take longer that 5 minutes and it has to be something in his house. The result isn't what you'd think ..." Luckily, he stopped before "peanut butter."
Put them to better use (Score:5, Funny)
I tried putting them in the microwave [google.com], throwing them across the room [flickr.com], smashing them with my head [guzer.com], and then eating them [google.com].
It worked! I never had to listen to the Kings of Leon again...
--
"A man is asked if he is wise or not. He replies that he is otherwise" ~Mao Zedong
Re:Put them to better use (Score:5, Informative)
Caution: Plot Spoiler!!!
Re:Put them to better use (Score:2, Funny)
Re:Put them to better use (Score:3, Funny)
Re:Put them to better use (Score:4, Interesting)
I wonder to myself---why isn't the top layer of the CD coated with another layer of plastic?
The foil is pretty much exposed to any particles... a thin layer of paint isn't going to do much.
The CD cases (the big book-like things, not jewel cases) always seem to accumulate little particles in the sleeves, which will rub against the foil, and scratch it, or worse, make it start coming off. This happens especially with cheap CDRs (also, exposing CDRs to heat tends to make the foil start cracking). I don't understand why the data layer isn't well-protected on BOTH SIDES.
I guess the solution to things rubbing against the disc would be to use only jewel cases, as they suspend the disc in air so that particles wouldn't be forced up against it, but, I can't carry around huge crates filled with jewel cases everywhere I go.
Perhaps the best solution is to keep original CDs in jewel cases, never use cheap CDRs, and only carry around copies of CDs/CDRs in the big CD books, and keep a portable air-can or hand-held vacuum handy to suck dirt out of the case every time it's opened/closed, and never leave it open (just open it to take something in/out, then immediately close it), and never put anything heavy on top of the case (it could press particles that are in the case into the foil).
Is there a better option? I've lost so many things this way... Are there CDR manufacturers that put extra layers of paint or a thin layer of plastic on the top of the CDR? I seem to recall some audio CDs I own having a layer of plastic overtop of the foil (especially older ones), but most don't seem to.
Re:Put them to better use (Score:4, Informative)
Actually used the Hair Gel trick today this evening on a Netflix DVD: The Collected Shorts by Jan Svankmajer that was horribly damaged.
Alberto VO5 Hairdressing Gel for Men. The DVD, after about 19-20 minutes was basically unplayable, pixilation, video noise, no sound, etc.
VO5 did the trick, thanks Slashdot.
Even Better (Score:5, Informative)
Just try using Pledge [lifehacker.com]. I actually did this with scratches on my glasses (the lenses are plastic) and it works pretty well. Note: you'll probably have to do it again in the future, as I'm not sure how long it will last on the CD.
Re:Even Better (Score:5, Funny)
Posting anon for obvious reasons... Oh and you have to put it ON THE CD
Re:Even Better (Score:5, Funny)
Re:Even Better (Score:3, Funny)
I mean, I don't have any scratch marks.
On my cd's. I mean.
Re:Even Better (Score:2)
Re:Even Better (Score:5, Interesting)
Interestingly, I work at a restaurant, and one of the banes I deal with his having to constantly change gloves, not for want of sanitation (which I do heed, btw), but because the pulled-pork (it's a southern thing *shrugs*) grease will eat the glove quickly. However, one night, I accidentally dropped a glove in the deep-fryer and nothing happened to it at all. No melting, no warping, etc, and the grease is vegetable-based.
Re:Even Better (Score:5, Funny)
Re:Even Better (Score:5, Funny)
Ok. I tried that.. but the hole is still too small. Should I try it with a CD from somewhere other than Virgin Music?
Re:Even Better (Score:3, Funny)
Re:Even Better (Score:2)
Nah, try using Astroglide for a longer-lasting treatment..
Re:Even Better (Score:3, Funny)
Re:Even Better (Score:2, Interesting)
Re:Even Better (Score:2, Informative)
Re:Even Better (Score:5, Interesting)
It has to be sad: this was on music CDs, so you can lose quite a lot of bits without serious harm to the result (and even a slightly audible tick is something you can live with), so it's not a fir comparison to software. But it did make me wonder: do all those remedies really help the machine read more bits correctly by repairing the refrective plane, as it is tempting to believe? Or do they simply allow the built in error correction do its job, by blocking the area where the (clear but warped) surface of the sratch would otherwise make the laser lose its tracking?
Re:Even Better (Score:3, Informative)
The audio CD format uses error correcting codes (See Reed-Solomon_error_correction [wikipedia.org]). I don't believe CDR data formats do (but I could be wrong about that). Anyway, it would appear that scratches are more likely to cause tracking errors than non-reflective marks, which makes it easier for the drive to access and error correcting codes and reconstruct the damage.
Re:Even Better (Score:3, Informative)
Actually, Data CD's [cdrfaq.org] do employ error correction codes, it's far more robust than for audio CD's. The need for a bit exact copy, while audio can get away with a certain amount of interpolation ensures that.
It adds up [mrichter.com] to a 13% hit for the 'true' capacity of a CD. IE a 650MB data CD actually has 750MB of capacity, without ECC.
Re:Even Better (Score:5, Interesting)
Perhaps for CDs there is a similar phenomenon. I am not sure how the error correction in a CD works, I am not sure whether it has the problem of "identifying" errors - I thought it simply applied to the data stream a standard decoding transform based on distance to a correct codeword. So perhaps part of the benefit of painting the defect black is that it cuts down on reflections, so that you can read neighbouring areas of the CD better?
Re:Even Better (Score:3, Interesting)
I imagine you could find out by using cdparanoia http://www.xiph.org/paranoia/ [xiph.org] or EAC http://exactaudiocopy.de/ [exactaudiocopy.de]
EAC will tell you exactly where it has trouble read
Candle wax works too (Score:2)
Re:Candle wax works too (Score:3, Funny)
Re:Even Better (Score:2)
Re:Even Better (Score:5, Informative)
Pledge works pretty good, but I'll try pouring simmering water over them, first; IME it's the dust and crap trapped in the scratches that cause the laser to fail to read the data, get rid of that and you are go for a CloneCD session.
The most extreme solution I tried was the plastic scratch protectors; put a very small amount of vegetable oil on the CD evenly, then put on the scratch protector; as long as the CD is clean clean clean before you put the oil on, and the top isn't scratched, it'll read once, guaranteed.
Scratched (Score:5, Funny)
Fixing Scratched Vinyl (Score:5, Funny)
This Account Has Exceeded Its CPU Quota (Score:2)
Guess we'll never know.
I received the following message: (Score:5, Funny)
Understatement of the century.
Quickest slashdotting EVAR! (Score:2)
Re:Quickest slashdotting EVAR! (Score:3, Funny)
Re:Quickest slashdotting EVAR! (Score:3, Funny)
WTF is UP with that 5th dentist????
Re:Quickest slashdotting EVAR! (Score:3, Informative)
Then, I went to the local gamestop and bought one of those "Disk Doctor" (Same concept as this model: http://www.amazon.com/gp/product/B00000J4PD [amazon.com] ) things, that has a grinding d
Wow! (Score:5, Funny)
Aladrin Cache for those who missed it:
"This Account Has Exceeded Its CPU Quota"
Google cache of site (Score:5, Informative)
http://72.14.203.104/search?q=cache:WiSKiTXvp74J:
Re:Google cache of site (Score:5, Informative)
And after viewing it we find... it wasn't worth it. Just a bunch of "This didn't work. This didn't either. Nor this. And that didn't either. HAIR GEL! THAT WORKED!". No discussion on why or other things to try or anything.
At least it was short.
Re:Google cache of site (Score:3, Funny)
Re:Google cache of site (Score:5, Funny)
err, or those with girlfriends, wives or daughters. Guess that's not you :)
I always used unflavored plain chapstick (Score:5, Informative)
2. Dry it off
3. Put a little chapstick on the tip of your finger, rub it gently in a circular motion on the surface of the CD where the scratch is
4. Wash again with hand soap and water
This seemed to work pretty well for small scratches.
Re:I always used unflavored plain chapstick (Score:4, Funny)
old photographer's trick: nose grease! (Score:5, Informative)
Re:I always used unflavored plain chapstick (Score:4, Funny)
Just don't use Lava brand soap [wd40.com].
Re:I always used unflavored plain chapstick (Score:3, Informative)
Oops. (Score:2)
This Account Has Exceeded Its CPU Quota
Please contact this site's webmaster.
Wait a few minutes and use your browser's "Back" button or click here to try again.
If you are the webmaster, your account may have exceeded for one or more of the following reasons:
* Your site has used more than 20% of the cpu.
* Your account has too many processes running at the same time.
* Your site was consuming too many resources. This happen
Re:Oops. (Score:5, Funny)
Yeah, our server is now on fire. But don't worry, the local fire department has been called.
Re:Oops. (Score:3, Interesting)
(yes I know it's an old and obscure reference and it probably has been removed by now. Puzzled me to no end the first time I saw it though)
Re:Oops. (Score:3, Funny)
You could still be fixing a cd (Score:5, Funny)
Brasso works (Score:5, Informative)
http://www.burningissues.net/how_to/scratchrepair
Re:Brasso works great. (Score:2)
Article Text as site is down... (Score:5, Informative)
Published July 27th, 2006 in Main
We've all been there, bought a preowned game, put it excitedly into the console, then shouted "OMFGz0rWTF!?!?" as the console wouldn't recognise the game. Or perhaps you have a CD which contains important data, and M$ Windoze gives you a "Cyclic Redundancy Check" error (fancy way of saying 'Your disc is bloody SCRATCHED').
Whatever your problem is, it's caused by the same thing: A scratch. A scratched CD or DVD is just annoying!
So I took it upon myself to perform an experiment, to determine the very best way of dealing with a scratched disc. The limit I set myself, though, was that whatever I did it with must be somewhere in my house, and can't take longer than 5 minutes, including waiting time for things to dry, etc.
I thought of three main ways to cope with scratches:
1. Use an oily substance, or a gel, to fill in the scratch so that the laser goes straight through. This is the easiest option of the three.
2. Use a mild abrasive to round the edges of the scratches so that the laser doesn't get scattered as much. This is probably the most feasible option of the three.
3. Somehow take off a thin layer of plastic, removing the scratches altogether. This is the hardest, and probably impossible in 5 minutes with household items.
How a CD works:
I burnt 5 CDs with 6 songs on them:
* Kings of Leon - Razz
* Kings of Leon - Soft
* The Libertines - What Katie Did
* Kings of Leon - The Bucket
* Kings of Leon - Velvet Snow
* Kings of Leon - Taper Jean Girl
I then proceeded to scratch a few of the CDs with a pair of scissors, nothing deep, just enough to make the XBox in which I was playing them get annoyed.
The first thing I tried was plain old water, I know, sounds stupid... But the day before, I bought a game, which was scratched (not dirty, scratched). The first thing I tried was water, which I rubbed in gently, so that it stayed in the scratches, it then worked perfectly.
Next I had to rub it. The only way to rub something off a CD, is with a lint free cloth, going out in spokes from the centre.
Ok, so that didn't work too well on my test discs... Next up was, deodorant. I decided to use this, because it contained something oily (isopropyl myristate) which was dissolved in something volatile (denatured alcohol, propane, butane, isobutane, basically loads of hydrocarbons). So when I sprayed it on, I was hoping for the alcohols to evaporate while the isopropyl myristate separated into isopropyl and myristic acid to become oily and viscous, and stay in the cracks.
I rubbed it in gently, just to get it into the cracks, but not to remove it, and then let it sit for two minutes. It evaporated, and when held against the light, the "rainbows" got scattered less. It looked hopeful. But it didn't work.
Ok, next up is something I use to clean the fretboard on my guitar, Lem-oil. It's viscous and oily, and smells of lemon. I sprayed it on and this time had to rub slightly more vigourously, as it wasn't volatile enough to fit in with my 5 minute limit.
I rubbed it in, and it sort of worked. The XBox loaded the CD, and played it, but it was really crackly and noisy. So it kind of worked, but Caleb sounded pissed off and sort of like a monster.
Next I tried the method that a lot of people talk about: the toothpaste method. Toothpaste is a mild abrasive, and using it you should be able to round off the edges on the scratches. This method looked like it would work if I carried on, as the light was getting less scattered by the scratches, but I set myself a strict 5 minute time limit. To apply the toothpaste take the tiniest bit on the tip of your finger, and without touching the CD with your finger its self, apply
What also works (Score:4, Informative)
Lasts a few hours but long enough to recover the ISO or data.
Re:What also works (Score:2)
Worked a treat, even on the long circular scratch going half way round the disc, which are the nastiest. Just successfully ripped an ISO of it. Cheers, if you're ever in Dorset, I owe you a beer!
Olive oil (Score:3, Informative)
I've been using olive oil successfully for years. Pour a smal drop on and wipe over the surface with a lint free cloth. Recommend not reading the CD in your best drive though (although I have had no trouble)
Re:Olive oil (Score:4, Interesting)
Now depending on the location of the circuitry and the frequency of the use of "home repaired disks" this may or may not be an issue, but it certainly would make me a bit nervous...
I saw the actual site for those who missed it... (Score:3, Interesting)
That said, how is this any better than the scratched disk in the first place? Sure it might play once, but now you have bloody hair gel on your disk! that's even stickier and more fragile than the cheap plastic they used to make the disk.
I like my solution better:
download what was on the disk from somewhere else.
Q: isn't that piracy?
A: Does it really matter? they sold it to you on crappy cheap plastic.. it should be fair use to "repress" the cd/dvd you bought.
Re:I saw the actual site for those who missed it.. (Score:2)
Some scratched CDs/DVDs contain data that is not available anywhere else or may be difficult to find. Using hair gel on a scratched disk to salvage data is reasonable and it may be easier than finding replacement data, even if it is readily availa
Re:I saw the actual site for those who missed it.. (Score:2)
I don't want FOP Damn it, I'm a Dapper Dan Man! (Score:5, Funny)
"I like the smell of my hair treatment; the pleasing odor is half the point."
Re:I don't want FOP Damn it, I'm a Dapper Dan Man! (Score:2)
Re:I don't want FOP Damn it, I'm a Dapper Dan Man! (Score:3, Funny)
teaser (Score:5, Funny)
Betcha can't guess what it is...Keep in mind his original criteria...
He used hair gel. (Score:2)
My solution (Score:4, Informative)
Re:My solution (Score:2)
quality (Score:4, Informative)
Cool (Score:2)
Solution for slot-loading drives (Score:4, Funny)
Re:Solution for slot-loading drives (Score:5, Funny)
Shouting "OMFGz0rWTF!?!?" (Score:5, Funny)
You know, I wonder how many of his readers have really shouted "OMFGz0rWTF!?!?"... I mean, how do you even say that? Where do you even start?
Like this: (Score:4, Funny)
Yeah, it doesn't exactly roll off the tongue, does it?
Re:Shouting "OMFGz0rWTF!?!?" (Score:2)
The really sad part is it took this long for, out of all of slashdot, someone to bring the question up lol
Car wax (Score:2, Informative)
In other news ... people still use CDs (Score:3, Insightful)
The premise of the article raises two questions:
1. What the hell do people need CDs for?
2. How in hell do these CDs get scratched? It's not a long distance from the CD tray to the jewel case.
Re:In other news ... people still use CDs (Score:3, Informative)
From your statement I can infer
I don't get it either (Score:2)
Re:In other news ... people still use CDs (Score:4, Informative)
My first car only had an 8-track player. As a result I hit some thrift shops and bought some 8-tracks. My current car has a CD player, and I use CDs in it. Software is still released on CD for the most part, and they are rather handy to have to boot a pc in the unlikely event the HD gets buggered. Laptop users "should" at the very least carry one disc with them in this unlikely event.
2. How in hell do these CDs get scratched? It's not a long distance from the CD tray to the jewel case.
Many things don't come in a jewel case, they only come in a paper sleave. Anyhow jewel cases, while they are my most used disc transport vehicel, are not the most reliable suckers on earth. Those hinges tend to break if you look at them funny. Put a jewel case in a bag, hit the bag in the just right way, hinge cracks and disc falls out. I find that slim jewels tend to be more resistant to such breakage. While I favorite for size reasons, I must admit I prefer the long box and thin long box in the fact that they take the most damage without worry of the disc falling out.
Brasso - Works Great! (Score:2, Informative)
Workaholics! (Score:5, Interesting)
Wax? Pledge? Toothpaste? Buffing?
Y'all are a bunch of workaholics.
Just lightly wave a propane or butane torch over the scratches.
It works for all polycarbonates, including CDs, DVDs, helmet visors, motorcycle windshields, airplane windshields, cellphone screens.
The trick is to wave the flame over it so very very lightly and quickly, that the rough edges of the scratch briefly melt and flow.
Re:Workaholics! (Score:5, Informative)
Be sure and use a "clean" burning flame, most pocket lighters, etc have impurities that can leave residue behind. Definitely do not use a candle.
The best method I've found is to lay the object flat and pass the flame over it (as mentioned in parent), as opposed to holding the object above the flame. Since the majority of the heat (and any burning impurities) are rising upwards this gives a more even melt with less chance of excessive melting.
Jonah HEX
Waxy substances and heat (Score:2)
Brasso (Score:3, Informative)
Use a cloth, apply Brasso in a circular motion, let dry. Wipe Brasso off with same cloth, using a decent amount of force. Brasso is a really good mildly abrasive polishing compound, and enough applications will erase any scratch.
Cleaned my whole CD collection this way.
There are plastic polish compounds available (Score:2)
Then, since you "own" a "license" to the disks that are already scratched all the way through, download both tracks that you really like and burn 'em on a new cd.
And that acrylic polish will also clean up your non-sahpire watch crystal.
Hint (Score:2)
The repair just isnt gonna last - if you had to resort to such measures once becuase you didn't have a backup, surely you've learned your lesson, right?
Conincidental "How To" (Score:2, Informative)
at http://www.wikihow.com/Fix-a-Scratched-CD [wikihow.com]
The nearly last ditch effort is to use vaseline (a lot like hair gel).
However, it's not a long lasting solution. Just long enough to burn a new CD.
Rain-X (Score:2)
Actually, the _worst_ thing I've ever done to one of my CDs was try and "fix" it using one of those "scratch-fixing" kits from the Video store - the stupid kit destroyed the surface of the disc so badly I thought I'd never be able to use it again.
For those in the know.... (Score:3, Insightful)
To polish out scratches...Wright's Silver Creme (Score:3, Insightful)
Just remember, as with any treatment, rub straight out from the center, at a right angle to the tracks, and never around the disc in a circular motion.
Re:Slashdotted (Score:2)
mirror (Re:Slashdotted) (Score:5, Informative)
Re:Slashdotted (Score:5, Informative)
Re:Household trick (Score:2)
Re:Household trick (Score:2)
Re:Slashdotted (Score:3, Informative)
Re:Page Mirror (Score:2)
You might have your comment threshold set too high, but I've seen several comments on Turtle Wax, etc on this page.
Re:CPU Quota? (Score:3, Funny)
Re:Will this work with HD-DVD/Blueray? (Score:2, Insightful)