I have a 4x3 fpcrt, and am using the ati dvd player. Do i need to apply the widescreen registry hack? Ideally, of course, i wouldn't, just concerned that without it the ati player will do something stupid like throw away 1/3 of the lines, then rescale back up.
from the faq:
"After your HTPC reboots there is one key additions tweak required to the Windows registry to fully configure your ATI DVD Player for use with your HTPC and a widecreen TV monitor/projector. The ATI DVD Player will not correctly play widescreen anamophic DVD's in a widescreen mode as is essential to getting the best video performance if you have a widescreen capable TV monitor/projector. If your TV monitor/project has a standard 3x4 display and lacks the ability to vertically squeeze a widescreen DVD image for display, then this modification of the Windows registry is not necessary for your case. "
Widescreen hack is only needed when you have a widescreen, non-4:3 monitor. The hack is needed because the ATI player only likes square pixels normally. Anamorphic DVDs are handled seamlessly.
Mits 65903 (65" widescreen HDTV)+ RCA DTC-100
Gateway Destination 27" (Princeton Arcadia based)+HTPC (Pentium II 400, 256mb, 20gb+9gb HD, Radeon LE, cybertainment tv tuner, asus dvd-rom, hercules game theater xp, Kenwood VR409 DTS receiver)