I do backups on several Linux servers (all running RedHat 7.1 or later). All of these machines have the Plextor DVD+RW 504A, and I'm getting the same problem on all of them. cdrecord seems to function just fine, but then when I actually mount the disc and try to open the file the system tells me that it's corrupted. When I move the DVD to another machine, using a different OS, the contents appear to be fine. Could the Plextor drive be succeeding on writes, but failing on reads?
The Plextor 712A does not seem to have this problem, but I'd rather not have to replace all of the 504A drives.