ffdshow is an open source decoder and encoder mainly used for the fast and high-quality decoding of video in the MPEG-4 and AVC (H.264) formats, but supporting numerous other video and audio formats as well.

Fast, easy yet powerful video transcoder. # Convert any video files that can be played with GOM Player # Embed subtitles to the video (you can see subtitles on the resulting video even if your device doesn’t support subtitle)

3GP Player 2006 is a free 3gp player for your PC. Play all of your phone 3GP videos on your Pc supports 3GPP, 3GPP2 MP4, MOV, AVI .

HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded DVD to MPEG-4 converter, available for MacOS X, Linux and Windows.

Convert video files to AVI, WMV, MPEG, MOV, SWF, FLV, MP4, RM, RA, MP3, AAC,iPod,iPod Touch,iPhone, Zune, PSP, Creative Zen and iRiver and Archos formats.