Attached Link: http://www.microsoft.com/windows/windowsmedia/format/codecdownload.aspx

Or you could try the Microsoft verion of MPEG4. Very simple controls and generally good, try: Render to bitmap sequence first off, so that you can try multiple CODECs and settings with something like VirtualDub rather than re-render (you're probably doing this already but it doesn't hurt to mention). CODEC: Microsoft MPEG-4 Version 2 Keyframe every: 1 seconds Smoothness/Crispness: 0 (left-most/smoothest) Data Rate: 6000 Kbps Keyframe is the most variable of these - if movement is slow and there aren't camera changes (or they are rare) then a larger number will allow more bandwidth for intermediate frames. Extreme values (like 9999) CAN be useful but make seeking within the video VERY slow. Next up for changing is the data rate - if the resultant filesize is too large for your purposes then drop it - but be aware that the lower the data rate the greater the chance of unpleasant video effects. There's a potential trade-off between file size and quality, basically. Which version of the CODEC you have/use is up to you, but a V8 or V9 CODEC package from MS can be obtained from: http://www.microsoft.com/windows/windowsmedia/format/codecdownload.aspx One of the other advantages of MSMPEG4V2 is that Windows users don't ahve to go and download & install anything. No spyware, no extra charges - unless their setup has been modified Media Player will prompt them to auto-download the video CODEC if they don't ahve it already (and they probably do).