Does constant ripping screw a CD beyond repair..?
Thanks a lot, dude!
Much appreciated
Check out this thread if you’re concerned about your discs in general:
Thread 179895
(link copied from above thread, op: Darth Revan)
Disc rot – Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Disc_rot)
Repeatedly re-reading the same block in a fruitless attempt to recover data from a damaged segment can wreck a drive, in the same sense that putting your car in reverse and flooring the accelerator for five hundred miles can wreck an engine. Only the most extreme and sustained abuse will have any chance of causing any sort of measurable damage to the drive, as they are designed to perform tens of millions of random read functions across their lifespan.
As originally stated, it’s nonetheless a good idea to schedule short but fairly regular "breaks" during protracted ripping sessions; during a ripping operation, the disc is rotating at high speed for extended periods of time; far faster than a CD or DVD is during the course of standard playback. Running the motor at high speeds for extended periods is NOT designed for, and can result in overheating. By comparison minor movements of the stepper motor during repeated re-reading sessions is not likely to have any impact of any kind other than that it will take a long time to complete. (As a general rule of thumb a competent ripping program will slow down the drive if it encounters a bad block; read accuracy is inversely proportional to rotation speed.)
Disc rot is caused by manufacturing flaws and the natural chemical reactions resulting from them. Many different substances (plastics, chemicals, aluminium reflective layers, lacquer, etc – three times as many in recordable media as distinct from media made from a glass master in a pressing plant.)
Assuming a drive is functioning correctly, playback (and ripping) is a NON-CONTACT exercise – absolutely nothing happens to the disc except a) it spins, and b) it has a low-power laser beam pointed at it. Neither of these activities cause or exacerbate disc rot. 99.99999% of discs that were stable at manufacturing will never rot or bronze, unless improperly stored or deliberately mistreated.
In vinyl, infinitesimal levels of damage are made upon every playback, because playback is achieved by physical contact between the vinyl and the playback medium. A finely ground diamond, traverses a groove cut in hardened vinyl. Repeated playback causes wear – repeated playback with a worn or poor quality stylus, a badly balanced cartridge, or a tonearm set at an improper tracking weight or anti-skate compensation, will cause wear much, much faster and in extreme cases, can render a record unplayable with just one playback.
As stated, CD playback/ripping is non-contact (aside from the obvious; the disc is rotated on a spindle) and does NOT cause wear or rot or have any other impact – negative or otherwise – on the disc.
Appropriate storage is, however, good advice – out of the sun, away from moisture, extreme temperatures, and extreme humidity. Keep them in the jewel case (minor scratches can usually be error-corrected during playback or ripping, but big ones can penetrate the laquer layer and actually physically destroy the reflective surface on which the data is stored – BE CAREFUL) or in some other kind of storage fit for purpose. (Those little padded plastic wallets are pretty good… but in honesty, the best place for a CD or DVD is in the jewel case.)
I wanted to mention however that damage from playback can happen simply from picking up the disc and inserting it in the drive, there is always physical contact in the insertion of a disc, and that can cause some damage (it’s usually not excessive but it can happen), playback causes indirect wear from contact with the disc being inserted (not to be picky). The risk to a disk from playback is mainly from insertion, as that’s when damage is most likely to occur. I wasnt intending to imply that disk rot directly comes from the spinning of the disk in the drive as that’s not at issue. Frequent use is more likely to lead to some risk of laquer damage during insertion, which is why it’s a problem from excessive use (to clarify)
From what I understand most CDs can last up to 30 years without too much risk of detioration as long as they’re stored properly and handled carefully when used.
Regarding bad sectors wrecking drives, if a disc can’t be read properly, on some drives it will cause an issue where the drive may keep trying to access the sector forcing it to spin excessively when it shouldn’t (trying to find the missing or damaged sector) causing wear on the physical (spin) components of the drive. I’ve had this issue myself, and it was because of a damaged disc being unable to be read properly
Your first post implied that playing the disc hurts it. Unless some crazy shit happens inside the drive, it doesn’t. If you’re reasonably careful when you’re taking it out of the box, putting it in the drive, etc, you’re fine. Anything bad that happens to that disc is 99.9999999999% going to be down to human clumsiness or plain bad luck. (Both are issues I seem to be fairly well in touch with!)
I’ve got a few CDs that actually ARE thirty years old and they’re all absolutely fine. They play, they rip, no worries. I’ve got a couple of discs from the early nineties (they’re all those notorious PDO pressings from Blackburn) that started to bronze about five years ago (I quickly backed them up) but that’s about it. Aside from those and discs I’ve damaged through my own carelessness, in twenty-five years of CD collecting, I have never had ANY kind of trouble whatsoever. That’s with no effort on my part other than keeping them in boxes away from extreme weather conditions. CDs are tough cookies. 🙂
Its good to hear that 30 year old CDs are still holding up
I haven’t had many problems with mine, although I do have a weird burned CD that suddenly stopped working, hasn’t been used in 20 years, hasn’t bronzed at all, hasn’t been scratched or treated roughly, and Doesn’t have any noticeable detioration from disc rot either yet doesn’t work anymore
I haven’t had many problems with mine, although I do have a weird burned CD that suddenly stopped working, hasn’t been used in 20 years, hasn’t bronzed at all, hasn’t been scratched or treated roughly, and Doesn’t have any noticeable detioration from disc rot either yet doesn’t work anymore
Whoa, a CD you burned? Or an original-bought-from-a-store CD?
Granted there are brands of CD-Rs that are better than others and will last longer, but the general rule is they will not last as long as legit machine-pressed CDs.
But as the OP asked, playback and ripping CDs is a non-contact action and you will go through many CD/DVD drives before you have to worry about your discs wearing out. Just handle your discs with care at all times, always rip them as soon as you get them, and stick to just playing copies of them. Put the originals away in a safe place.
CDRs degrade for the following reasons:
a) Poor quality media. (=Poor dye composition and cost-cutting meaning thinner layers meaning poor reflectivity meaning inaccurate data recording.)
b) Unintentional chemical reactions resulting from the manufacturing process. See above.
c) Poor quality burn (performed faster than the media is rated for, over-burned, or performed by a faulty drive.)
d) Improper storage, rough handling, scratches, exposure to sunlight, UV light, or excessive heat.
Oxidisation can destroy the reflective layer – again, a chemical reaction (silver is used in the reflective layer; gold-layered CDRs don’t suffer) and nothing to do with the playback laser.
There are many different combinations of dye/reflective layer used in the manufacture of CDRs – the first CDRs were made from a cyanine-based dye which proved unreliable, leading to the development of chemical additives intended to stabilise the dye layer. Cyanine is sensitive to sunlight and exposure can destroy such a disc in weeks if not days.