Afternoon. I have just finished backing up a stack of images using Nero 6.x. The back-up was done on DL discs. The back-up format intentionally leaves the discs un-closed so files can be added (differential / full / incremental etc. etc.). The machine and DVD burner that did the work has no problem reading the discs / opening / modifying etc. The question: Is there any way to get my DL DVD burner on my second machine to read the discs because the drive currently will not. I am lead to believe that since the discs are not closed that some machines will not read the discs. Both machines are running XP. Both drives are DL+R. I guess all I need to know is should this be possible or should I quit trying to get my other machine (with a newer DVD drive) to read the back-up discs? (and by read, I mean fire up under explorer). There is nothing wrong with the drive. It reads all other discs fine. Any help would be appreciated. Thanks Bman.