Mac DVD Trouble
 

Hi Guys here's my problem. When I burn a DVD Image created in DVD Studio Pro 4 on a DVD-R it won't play in Apple DVD Player I get "supported disc not available" and when I try in set top DVD players it acts like a DVD+R. It will play in some players but not in others that are DVD-R only. Does anyone know if there is some setting in DVDSP that I am missing or even in the Mac OS (Tiger) that I am missing? It is a 2.5 hour program so I brought down the bit rate, could that have anything to do with it?
Thanks in Advance
Nate