Your best bet to get software from the matrox web site. It appears the dll comes with the rt2000 card
http://matrox.com/video/support/home.cfm#rt2000
If you’re adventurous you can download the dll from here
http://www.dynamiclink.nl/htmfiles/rframes/dll-d.htm
and move it to your system or system32 folder
then associate the fourcc’s with the dll’s
in your system.ini file add these lines to the [system32] section
vidc.mjpg=digivcap.dll
vidc.dvsd=digivcap.dll
vidc.dv25=digivcap.dll
vidc.dv50=digivcap.dll
vidc.mmes=digivcap.dll
(taken from http://nle.ixbt.com/faq/soft.htm)
under windows 9x that works nicely
but under windows 2000 and xp you need to make registry changes. i have a starter here
http://www.moviecodec.com/thread/2545.html
It’s a LENGTHY intro to manually associating codecs with their fourcc’s in the registry. if you need more help adapting the steps to the digivcap.dll file post here and I’ll get back to you.