http://www.dvdrwinfo.net/bbs/zboard.php ... no=10&cg=2
I hope this article from DVDRWInfo will be useful somehow.
We tested ricoh DVD+R DL 2.4x medias at various DVD writer encluding 1640/4163/108 and find out it has problem with playback at LG DVD Player A956 - released 4-5 years ago
I burned around 20 of Ricoh and 10 of mitsubishi(Verbatim) DL medias. For each test I varied burning software (Nero, DVDFab, Copy2DVD) and it showed different playback quality for each one.
anyway.... the bottom line is the ones with copytodvd run well. Nero and DVDFab did not work. some of nero's could not be read. others got some skip or not supported Jog Wheel control.
and i got the same results from both ricoh and mitsubishi DL media.
if you see the full article, table reads..
compatibility/switchover from title to main movie/Jog wheel supporting/chapter selection/2nd layer read in/2nd layer playback/resume play
O O X △ △ △ X