here's a fellow that did a DVD format compatibility test.
Check out his chart for the 3.95 GByte Authoring format

http://www.dvdtoday.com/Recordable%20DVD%20Test.htm

That's right.

That test is considered if not the, at least one of the best carried out so far.

We must consider that at that time no DVD+R media was tested, just DVD+RW.

I have first hand experience on 3,95Gb Authoring format.

I'v had players that refused to play properly any recordable DVD. The moment you put in DVD-R 3,95Gb Authoring, they play it like a charm.

The current situation is becoming better day by day (with the new players supporting all formats), and the few problems that arise are with older players, dubious media or labels.

Regards
Arnaldo

Heres a good link that tells about compatibilty.

http://www.dvdrhelp.com/dvd

With the few DVD-R projects I have created it seemed not to like a certain Phillips DVD Player. In our house we have 4 DVD Players:
Pioneer
Matshi (I think)
Phillips
and XBox
It played in all apart from Phillips.

All the best,

Ed