I've started some more Sonic Adventure re-texturing projects on the HKT-01 Sega Dreamcast Development Box. By using the development box, I wouldn't have to burn multiple CD-Rs to test on a retail unit.
The first 2 screenshots are using the background .PVR file from the Ice Cap snow level. The next 2 screenshots are using the background .PVR file from Mystic Ruins. The last 2 screenshots are using a random "night-time" background.
Expect a YouTube video soon! ;-)
You can read more here: