if i vaguely recall, there was an issue with MS virtual PC and a 2gb max limit on iso that it could read, make sure you have SP1 install. though vmware is much faster. it doesn't matter whether you save to FAT, FAT32 or NTFS with regards to cdimage, use this site and see if it builds ok and then burn to cd from within nero. http://unattended.msfn.org/unattended.xp/view/web/15/ ps, seems i've lost what i used:(