I just burned a data DVD backup around 2.5 GB without an issue, and I'm able to burn data or audio CD's all day with no problem.
If, however, I try to burn a video DVD, the DVD burn completes successfully (no error messages from multiple software packages including Nero, AVS, et al), but the DVD will never play more than about 12 minutes.
If I look at the back of the DVD, I can clearly see an area where where it appears the laser simply skipped over while writing. The "blank" area is about 1/4" wide and begins just under a 1/4" in from the beginning of the writable area on the DVD.
This happens regardless of software or brand of DVD I use.
I also just used Windows (Vista) to drag&drop a bunch of files to a DVD (just over 4GB this time). While this worked before with the smaller file size, this time Windows was unable to close session (nothing ever happened), and the same "blank" area appeared on the DVD, thus making the backup useless.
I used to burn video DVD's on this machine relatively often, but I haven't done so in several months. I relatively recently formatted the drive; it has definitely not worked since then, but it maybe have breen broken prior to that.
Device Manager shows no problem; I've tried removing and reseating the drive (I'm using a Dell Latitude D820 laptop)... Attempted to run the Nero Info Tool, but it crashed (no error message)...
Anyone ever seen this before or have any troubleshooting ideas?