Hi All, I've been having major problems for some time with backups skipping when they are played back on stand alone machines. On a lot of different movies. Not every copy I make, but given the very high number that seem to skip, I don't think that it's media. I've tried several batches of Ritek G04 & G05's and also Verbatim Advanced AZO (all DVD-R's). Having looked at many posts on this site, I have tried out a lot of suggestions such as ASPI, Un-installing and re-installing DVDD & Nero (reinstalling after using the clean tool). I've re-formated the HD, Defrag'd, Scanned for spyware/adware/viruses. I use Nero 18.104.22.168 and also the latest DVD decriptor and of course, when needed, DVD Shrink.All settings are defaults. As a last resort, working through the process of elimination, a new burner was installed under warranty yesterday. I've gone from a Sony DW-U18a to a 16X dual layer Sony DW-22A. I tried out the new burner after completing yet another fresh install of DVDD & Nero and I made a sucessful backup of an .ISO first time round with DVD Decriptor using it's verify facility. The copy worked fine on all stand alone players. Then things just got much worse than my original problem........... Having made a sucessful copy, skip free, just to make sure that all was well, I tried burning exactly the same .ISO again.Using DVD Decriptor when the burn compleates and the verification proccess is about to start, things just go wrong. Just as the Verification should start DVDD states that 'device is not ready/media not present'and the prog then needs to be closed down resulting in a coaster every time. This has happened four times in a row with brand new clean scratch free G04 and G05's. By the way, I was burning at 2X. Does anybody out there have any ideas what is happening here - I'm very close to giving up all together!!