DVD playback uses an overlay. Any graphic processing power granted to high resolution (more than 1024x768) is simply lost to the DVD. The same applies to color depth. The screen comes out true color even if the graphic card is set a 4, 8 or 16 bit color. 800x600 at 16 bit is probably best.
All DVD playback is 24 bit true color through sharing of color samples on 4 pixels transferred to an overlay inserted in the analog VGA signal downstream from graphic hardware through pixel replacement called colorkey.
Check paragraphs 3.4, 4.1, 4.4 and 4.6 in DVD FAQ, June 22, 2001:
http://dvddemystified.com/dvdfaq.html#3.5I found Power DVD 3.0 the most unsatisfactory DVD program for Windows 2000. I have full versions from four different sources (coming with Sony DVD, Hercules Geforce 3, etc.) and they are all worthless.
Mostly they have been optimized to install on Windows 98 & Millenium.
The setup files can even terminally destroy DirectDraw capability under Windows 2000 by applying Microsoft DXTXTRA.EXE indiscriminately. Then you are left to reintall Windows 2000.
Erase registry regional code registry key, the first bizarre line in HKLM, software, Microsoft, to be able to change regional code in Windows 2000 if the DVD reader is not hardware locked:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ ,x%"/ ]
My conclusion: on a dual boot system, set Intervideo WinDVD under Windows 2000 and set Cyberlink PowerDVD under Windows 98 or Me.