Hiya Alec
That's just the problem Alec - when you put the CD in an Audio player it doesn't play - my local dealer is getting in touch with Technote currently to try to find out why this is - we tried several disks at the dealers premises.
Equally when you put the CD in your computer to use the other bits and pieces on the Cd it screws up the computer as well...seen it both on my laptop at home and the one at the dealer's premises....
I reckon its the way the CDs were recorded/copied on behalf of Technote presumably by some secondary supplier.
Still I guess we'll hear all about it sooner or later....
Best wishes
Roger M