I would stay away from this card if I were you. Driver support has always been spotty. I considered it for some time. But I read some reviews and comparisons that changed my mind so I ended up getting an ATI Radeon AIW (now known as the Radeon 7200).
I took a quick glance at eBay and searched for "all in wonder 7500" and got 35 responses. It looks like $75 would probably be enough to get one of those. Also, if I recall correctly the MJPEG was unique to Matrox Marvels. I do not believe any other software can recognize that format to get it converted. I may be wrong on that though, hopefully someone will correct me if I am.
OG