I didn't think CDs ever wore out....!
Unless you mean it's just scratched to the point it won't play anymore :(
As far as I know, all copies of the Shag Times CD were "Manufactured by PDO". Massive numbers of CDs made by this plant around that time (1985-1990) are now suffering from "laser rot" because the ink they used to print the CDs actually corrodes the aluminium layer, or something like that. You can tell your CD has it if it has started to develop a Bronze colour rather than silver, particularly towards the outer edge of the disc. My Shag Times CD has it quite bad, so that the last track reads with errors when I put it through EAC (Exact Audio Copy). My KSTJ CD has the rot too, but being a cd single, all the data is towards the centre, away from the problem area. My "Give Peace A Dance" CDs also have the rot, and unfortunately "What Time Was Love?" is also the last track on the CD, so it is now suffering from glitches. A couple of years ago I used EAC to rip all those discs, at 1x extraction speed etc. to make sure I was getting the best possible rip. I then burnt myself copies that I use for playing while the originals remain untouched inside their covers with a bit of silica gel thrown in for good measure. (I know some people even store their damaged discs in acid-free paper sleeves to further protect them.) So... My final point? If you bid on that auction, ask the seller if all the tracks play properly first! Michael