Quote:These days it's quite fashionable to poo poo the CD...but I doubt few people TRULY miss the Vinyl Age, on the whole. I mean what good is "superior audio quality" if you can't hear the MUSIC thru all that snap, crackle and pop... .mattoI wasn't poo poo'ing the CD. I've moved house so many times in my life and my carry case of CD's is sooooo much more convenient than my boxes upon boxes of vinyl. The fact still remains though that the frequency range of Vinyl is higher than CD.In the UK we have lots of charity shops full of second hand vinyl from the 50's - 60's. Classical recordings on thick, hard vinyl. This type of vinyl lasts forever. It's hard to scratch and if you clean it before playing you don't have the snap crack and pop. Cheap vinyl suffers badly with age. Old 12"s start to sound like the music's being played whilst the musicians wander through piles of leaves. In the end it depends how well you look after your vinyl. The same applies to CD's though, especially with light and heat.I had to create an archive of Audio for my old company. We opted to archive everything on CD because it was cheaper (the companies decision, not mine). I would have opted for storing everything on Dat and then archiving these in a temperature and magnetic controlled enviroment.I discovered that Dat tapes from 10 years ago had started to deteriorate when left in boxes in an old store room. Cd's of Data information that were only 5-10 years old were corrupted because of excessive handling and bad storing.This is a real life situation, not a quote.For the home user this is not a huge issue, but there is a reason why the music industry does not archive their recordings on CD. Remember to handle your Pro Tools archives with care I will quote a source on CD archiving with CD-ROM/CD-R/CD-RW. Check out the wildly varying lifespans.....it's like a doctor saying "sorry, you only have between 2 days and 15 years to live.""CD-ROMs made when the technology was new in the early 1980s had problems with the protective lacquer coating not fully covering the disc. Aluminum can easily oxidize and when the lacquer did not cover the entire disc, the oxidation would eventually cause the disc to be unusable (except as a coaster). The early CD-ROMs also were labeled with inks that eventually reacted with the aluminum, which also caused the discs to fail. Fortunately, CD manufacturers realized what was happening and made changes in the manufacturing process to ensure better lacquer coverage, and stopped using chemically reactive dyes. (CD-Rs use metals such as gold that do not oxidize.) But there continue to be issues affecting the physical longevity of a CD. According to the technical pages of several CD manufacturers and trade associations, estimates vary widely as to the expected longevity of the media: CD-ROMs are estimated to last anywhere from 30 to 200 years.CD-Rs, before they are recorded, have an estimated shelf life of five to ten years.CD-Rs, after recording, are estimated to last between 70 and 200 years.CD-RWs are expected to last at least 30 years.Because CD technology is only about twenty years old (and recordable technology is younger than that), these expected life spans are estimates based on accelerated aging tests. As the testers at Kodak put it, chances are that if there is a significant error, the disc won’t work. Either it works or it doesn’t. How the discs are handled and stored can greatly affect their longevity. CD-Rs, with their dye layer, are especially prone to light. Leaving them on a desk can lessen the dye’s reactivity when passed through the recorder’s laser beam. The dye’s chemical state also makes for the shorter life span before they are recorded. As time goes on, the dye loses its ability to change from transparent to opaque. In other words, if you are only going to use one every six months, do not buy the 50-pack at your local warehouse club. CD-RWs have a similar problem with their alloy layer. After so many recordings and erasures, the alloy loses its ability to change from one state to another. This is estimated to occur around the 1,000th recording. There are many things that the user does that can shorten a disc’s life. Fingerprints and scratches are the most common. It is especially important that writable CDs not have fingerprints on them before they are written, as the fingerprint can scatter the laser beam from the recorder or weaken the ability of it to change the dye or alloy. In this case, the data can be jumbled or not be recorded at all—both of which can result in an unusable disc. Genealogists are becoming more aware of proper methods of writing on photographs and in scrapbooks, including using acid-free pens. The same advice should be heeded when labeling CDs. As noted previously, early CD-ROMs had inks in the labels that ate away at the disc. The same can happen if the user writes on a disc with a solvent-based marker. Water-based permanent markers are preferred. Ball-point pens should be avoided, as they can cause a scratch that shows through the reflective layer. For safest results, writing should be kept to the clear center portion of the disc. Stickers should be used only with the greatest of care. Labels that are applied off-center or with air bubbles and creases can cause the disc to spin out-of-balance. This is especially harmful in high-speed recorders and readers. Removing a label can also damage the disc’s surface, rendering it useless. Temperature can act upon the longevity of a CD. Several of the accelerated aging tests used 25ºC (77ºF) with 40 percent relative humidity as a baseline. Cooler, drier conditions should be beneficial. Conversely, warmer and damper conditions are a detriment. Wide fluctuations in these conditions are harmful. These conditions can occur when you leave discs in the back seat of your car in July."