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Thanks for your comments so far.
I haven't got the cd with me at the moment, so can't see if it's a sony one or not - I'll check later.
Whickerman - Because I can play/copy other cds OK in the drive, I thought the problem must be with the cd rather than the hardware. When I put this new cd in, it just doesn't recognise that there's a cd to play. I did notice however that if I went through file manager, it registered there was a disc there but listed all the tracks as unnamed 1KB files.
Interesting about the sony damages claim - as I say I'll check if it is a sony cd when I get home tonight.
Thanks again.