DVDs don't seem to be recognized at all. All software and drivers are latest versions. DVD light comes on for about 40 seconds, then turns off with AnyDVD status: ERROR processing disc, AnyDVD turned off!. One of my customers' drives could read these disks, but no drive on any of my 8 computers (12 DVD drives) could read them. (Had to return customer's system.) Won't play on any of our DVD players attached to TV's either. The box to the DVD set says they are region-1, but I changed the region to 6 on one of my drives anyway - to no avail. What could be wrong? I hope there's something simple I'm missing. What must I do to be able to read/play/backup these disks?? Thanks!