Prism supports all video formats that have a DirectShow based codec. This means that if you can play the video file using Windows Media Player then you can convert it using Prism.
This includes, but is not limited to, the following formats:
Prism can also download and use libavcodec, which supports a huge number of different formats. If Prism can't decode a file, it will ask permission to download the libavcodec.
Prism can also read and convert movies from non-copy-protected DVDs.Convert To
Prism supports converting to 3gp, asf, avi, dv, flv, gif, mkv, mov, mp4, m4v, mpg, ogv, rm, swf, vob, webm, wmv, divx, xvid, f4v, mts, m2ts, m1v, m2v, amv, apng, jpg sequence, and png sequence file formats. For avi you may specify a large range of compression codecs. If you are converting for an iPhone, iPad, iPod or PSP, select the appropriate target device. You also have the option of extracting audio from video by converting to either the wav or mp3 file formats.3rd Party Codecs and DirectShow Filters
As noted above, Prism supports a large range of file formats if a codec is installed. Please try playing your file using Windows Media Player. If your file is not supported, Windows Media Player may automatically install support on its own.
If the file cannot be converted or played, you will need to find a codec for the file. For more information please refer to Third Party Codecs.
For information about the difference between different video formats, view the article at http://www.nch.com.au/kb/10230.html to compare them side by side.