Update - I've gone through and finalized all of the Fujifilm discs, which gave me no problems and play just fine now on the newer players.
The CompUSA discs are less reliable and can take several attempts before the Zenith will read them . Once the Zenith recognizes them, though, I can finalize them and they'll then play fine. Still working through these.
I've started copying disc image files to the hard drive to make backups. I also wanted to add a menu and chapter marks and have long used Pinnacle Studio for video editing. I have the latest version, and it has worked very nicely for all of my home DV movies.
However, full length movies have proven to be a problem. To use Pinnacle I have to copy the disc into an MPEG file in order to insert menus and chapters. The original MPEG file plays without errors on the computer. However, the output of the Make movie, whether it's to a DVD or to a file (including an avi file), the audio starts to get out of sync with the video, which gets worse and worse further down the timeline. I've even done a Make uising only the MPEG file (no menus, etc) and converted it to avi and the resulting file has the audio sync problem.
Pinnacle support wasn't much help, stating that it was likely a problem with the original file due to lost video frames that added up over time cause the audio to get out of sync. No solution was offered.
Nero CD speed reported no disc errors.
The Express Burn program suggested to copy the disc only seems to copy an ISO image file, which Studio can't use.
I'm thinking of making shorter avi files and then combining them, hoping that might reduce the out of sync problem.