On Tue, 2008-03-04 at 16:02 -0700, Hans Fugal wrote: > As for archival, I do keep my CDs of course, but I have had CDRs rot on > me and I have to wonder if pressed CDs are going to end up rotting too. > Maybe ripping is the more long-term solution (if you back up).
For what is it worth, A pressed CD (one you bought from a store) will last a lot longer than an CD-R. This is because of how it is made. The short answer is that a pressed CD contains ridges or physical features that contain the audio. A CD-R uses a discoloration of a photo-sensitive Dye. That means that if you leave a CD-R upside down in light it will eventually become blank. ( a good science project: about a day or 2 of direct sunlight should erase anything on a CD-R) CD-RWs have the same faults to it. That being said, your pressed CD should last 100 years or more as long as you don't break it. Nathan
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