I'm running XP and I first wrote 10 tif files to a CD-R & then I added 3 more files to the same CD. Now when I go to open or look for all the files only the last three show up and when I go to look at how full the CD is it says zero percent of the disk has been used. I know the originl file are on there because I watched them burn. Why can't I see all the files they were all edited picture files and I don't have any other saved copies anywhere else unless you may know a place on the hard drive. This has happend before on CD-RW but never on a CD-R. Why dose this happen at all?