The MPEG Encode Samples from the Sega Dreamcast CHECK-GD: Loop Checker disc have been uploaded on YouTube. They are: ManxTT (Honda), Sonic3D, and SonicCD.
These could not have been possible without the help of drkIIRaziel and PsyMan of Emuforums. Many thanks!
MPEG Encode Sample: ManxTT (Honda) via YouTube
MPEG Encode Sample: Sonic3D via YouTube
MPEG Encode Sample: SonicCD via YouTube
Also, there were two images that caught my attention. They looked like the prototype screenshots of Windy Valley from the Dreamcast version of Sonic Adventure. What do you think?