Check out Greg "geelw" Wilcox' latest Did You Know? column. It's PACKED with Mega CD goodness.

http://www.digitpress.com/columns/didyouknow.htm

So who owns/plays Mega CD games? I only have a handful of these, from back when I used my Sega CD with that Datel CD-X cartridge. I got to play Silpheed before anyone else