CDRs usually have a distinct appearance on the burnt side where the data is stored. I've got some re-issue CDRs originally from vinyl. An LP stored a max of about 45 mins. A CD will hold upwards of 65-80. The data is stored from the centre going out and where the unburnt bit starts (ie where the data ends) is very obvious. If a quality CDR is looked after, ie put in its case and stored at normal temperatures and humidity, it should last years.

Having read this thread, and the others, I hope the CD I bought (No Roses by Shirley Collins and The Albion Country Band) is genuine and that the artists got their royalties. It was ordered through HMV a few years back.

If GuestMM does the trick, there will be smiles a plenty and hopefully would lead to the other affected artists and their followers getting what they deserve.