dont bother with windows copy
get nero or another program.
MP3 CDs are just CDs burnt with MP3's as data on them they need no special method and will retain their ID3 tags as well.
Nice!
A posible cause of the error 16 i would bet is to do with file names, windows HATES long file names which have symbols such as &$£"'. in them. if you must use symbols use safe ones like _ - ( ) i always use _ very rarely anyting else as this helps if uploading to a server.
HTH