Vinux-3.0.1-X86.iso : An iso file must be burned as an image.
( Burner option = "Burn an image" or "Burn as an image".)
The most common error is to burn a data cd.
But easy to check. These files should be on the cd :
autorun.inf install/ pics/ README.diskdefines
casper/ isolinux/ pool/ ubuntu@
dists/ md5sum.txt preseed/ wubi.exe