INFECTED CD

Ive scanned a cd that came from Europe several times using several
online scanners, ie TrendMicros, AVG, Norton, Panda and BitDEFENDER,
Ive also used linux to open the documents in OOffice. Can anyone
suggest anything else to ensure the cd doesnt have a virus. I was told
someone put the cd in and the computer became infected, not sure what
with. Im trying to take extra...precautions.

Any suggestions appreciated
Thanks-