Nifty little tool - users might wish to inquire into daemon tools aswell...
"IsoBuster lets you explore a CD"s File System while by-passing Windows. This way you get better error handling and several retry-mechanisms to aid you in getting the data, more CDs stay "readable" after problems, read and extraction from CD-i, VCD, SVCD, CD-ROM, CD-ROM XA, DVD, DVCD, and more."