Using Nero 7, I am having a problem with a multisession disc. I used the :continue multisession", feature and added data files to a multisession disc. Now the disc shows the sdded files but not the files that were already on the disc. Have they been lost?
If they ever burned correctly on the disc in the first multisession then the files are still on the disc and all is not lost. It may be that your DVD reader ? cannot read multisession discs correctly? What DVD writer/reader are you using and what firmware version? I would suggest that you try out s/w called ISOBUSTER to see what is now exactly on the DVD or CDROM(?)