You mention DVD and then CD. Will Vista burn to DVD? Do you have a burning software program? Is the drive a DVD burner? Pop a CD into the drive, right click the drive, and choose burn, or the equivalent. They should still be in the cache.
NEVER cut and paste when burning.
It has been years since I have burned a cd, and I bought a new CPU and wanted to copy my picture files to a dvd, well I am used to dragging or dropping files, not burning anyway I cut n pasted the files to the cd "folder" which took 2 hours when it was finally done i popped the cd out never burnt it now the files are gone 3 years of pictures. Please help!! i am running windows vista