Here is a video demo from the Sega Dreamcast Development Kit Set 2.1 - NEC ARC1A PowerVR. This demo is a single, spinning compact disc.
For more info, visit: http://segakatana.com/hardware.php?cat=dcdev&id=set2dc" target="_blank" rel="nofollow">http://segakatana.com/hardware.php?cat=dcdev&id=set2dc">http://segakatana.com/hardware.php?cat=dcdev&id=set2dc