We host it on the site now.
Get it here 
posted in Video Codecs
Hey just “google” download awarent.exe... run this file (it must unzip to temporary location) after you install their player,,, then you can just use WINDOWS media player to play back your Sirius motion pixel cds in the best quality.. fullscreen sucks on their player
forget all the other answers!! google Awarent.exe for XP and higher playback
Thanks a milion Rodd I was slowly going insane trying to find a motion pixels reinstall.
Installing the ancient Motion Pixels player does not appear to be necessary. The free VLC media player appears to have built in codec support to play these AVI files.
https://web.archive.org/web/20070211021111/http://www1.mplayerhq.hu/MPlayer/samples/drivers32/motionpixels/
These are here.
can be found at
samples.mplayerhq.hu/drivers32/motionpixels
or samples.ffmpeg.org/drivers32/motionpixels
sorry no solution for win7/win8 or newer. i never figured out the codecs :(
moviecd is pretty low quality. dvd is better if you can find it.