Dick - it makes a difference if it won't play on your machine(s). I have come across several copied CD-Rs (represented as CDs) that won't play on various CD-players I have (one quite old, but happily plays all commecial CDs, others newer, with claims to read all formats of DVD/+R/-R/+RW/-RW, CD/R/RW, MP3, photo-discs etc).
Sometimes I have been able to copy the faulty CD-Rs via my computer, with the second copy being readable by the other CD-players, but sometimes the faulty CD-R is just unreadable on any machine. Still awaiting the return of the artists concerned (if ever!) before I can get my money back.

Are you saying that Camsco sells CD-R product at the same price as pressed CDs? (I understand the LoC/Folkways catalogue would be produced on-demand in CD-R format). And do you indicate to your customers that that is what they are getting?

There has been plenty of discussion both here and on other forums on the poor durability of recordings on CD-R, especially at the cheaper end of the market. I've just been surveying printable CD-Rs available through eBay. Unit prices range from 13p(20c?) to over £2($3) for "archive quality" (claiming 100/200/300 years security!) I'm guessing that most self-produced CD-R albums would be on quite low-priced stock - that's what is commonly available, the higher quality makes are quite hard to source, especially here in the UK - presumably sales aren't sufficient to allow importers quantity discounts.

Ross