I burned 2 discs from the same file today. "Underworld" .
On cheap Fortis -R it would start freezing about an hour in.
I did a second burn with Ridata -R and the movie played flawlessly. Of course both were burnt on a Plextor 708A.
I also had an older burn on cheap media from the same files that were done on a Liteon (411 or 811 had em both)
Would not work after 2 minutes
These were all played back on a Samsung dvd player that list DVD - / + r and RW MP3 and so on as being playable.
So take from it what u will!
I do know that some players play everything I burn on or with.
Koss being one! And who woulda thought that cheap old Koss players play all media burnt on all drives, at least that's what I see!!