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:

• avi - includes divx, xvid, h264 encoded files. Will also support .dixv extension. You will need to install support for divx, xvid and h264 as these are not supported natively by Windows
• mpg and mpeg - mpeg1 and VCD are supported by default. If you have a software DVD Player installed (PowerDVD for example), then Prism will also support mpeg2 and vob formats
• h264/264 - h264 encoded bitstream
• vob - as noted above with a software DVD Player
• asf and wmv
• mkv - with the Matroska DirectShow filter installed
• ogm - with OGG DirectShow filter installed
• mp4, 3gp - with a mp4 filter installed
• m2ts and mts
• dv
• apng - animated png video
• mod - video files
• tod
• ppt/pptx - MS PowerPoint presentation files
• rmvb
• mxf

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 Blu-Ray and non-copy-protected DVDs.

Prism supports converting to 3gp, asf, avi, dv, flv, gif, mkv, mov, mp4, m4v, mpg, mpeg, ogv, rm, swf, vob, webm, webp, 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.

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.