http://www.cdrinfo.com/Sections/Article ... ty%20Tests
The main part of interest is the fact that the -R media largely outperforms +R in compatibility when tested on a large amount of drives.
That should keep the +R marketing quiet a little. Not that +R is a teriible thing, but equally the compaitibility stats the +R companies have come up with look way off.CDR-Info, has determined that DVD-R is clearly the most compatible DVD recording format on the market. To assess the compatibility level of DVD Formats we created video content on a DVD writer using DVD-R/RW and +R/RW media. These discs were then played back in other DVD players and DVD-ROM drives –over a 1,000 combinations of drive, media and player were tested.

