I've been backing up movies with TDK and Verbatim data life plus dvd-r's for some time now. Using Plextor PX 740A burner and Nero 188.8.131.52 and some time Imageburn. I recently upgraded Nero to 184.108.40.206 and began getting write errors with Verbatim DVD's only. TDK still burn fine. I uninstalled 220.127.116.11, used the nero clean tool to get rid of any other files and re-installed 18.104.22.168 and still can't get a complete burn with Verbatim. What could have happened? Could I have a bad bunch of Verbatim dvd's? I just opened a new stack of 50. The first 9 so far yeald a write error or burn successfully but then won't play.