Yes, Korak... That is an excellent site... visit
http://www.videohelp.com/dvd
for stats on DVD compatibility.
The most important statistic is that DVD-R's play in only 93% of DVD players currently on the market. I had a project recently where I sold 70 DVD-R's, and 5 of the customers said they couldn't play them... That's exactly what I expected with the 93% rule.
I get so frustrated when people in forums ask me "What kind of DVD-player are you using?"... The problem is NOT MY DVD-player!.. I'm selling DVD's on the retail market... if I sell 100 DVD's for one project, they will likely get put into 100 different DVD players. I can't call up every single person who bought one of my DVD's and ask them the make and model of their DVD-player.
93% is simply not good enough for my business, either. I have begun to experiment with a new format called "DVD book-type"... I purchased a benq burner (DW1620) that claims that burning in book-type is 99.4% compatible. I still don't know a lot about it, and have yet to do any tests, but if anyone knows anything about "book-type".. please let us know!