DivX!

HandBrake is an open-source, multithreaded video transcoder- it converts digital media from one format to another, compressing the files in the process. Handbrake can rip encrypted DVDs with libdvdcss (libdvdcss is installed with VLC media player on Mac OS X, or AnyDVD/DVD 43 on Windows).

MPC-HC is an extremely light-weight, open source media player for Windows.

SMPlayer intends to be a complete front-end for MPlayer, from basic features like playing videos, DVDs, and VCDs to more advanced features like support for MPlayer filters and more. SMPlayer remembers the settings of all files you play. So you start to watch a movie but you have to leave... dont worry, when you open that movie again it will resume at the same point you left it, and with the same settings: audio track, subtitles, volume...

Media Player Classic was designed to look just like Windows Media Player 6.4, but with many additional new features. It has a built in DVD player with real-time zoom, support for AVI subtitles, QuickTime and RealVideo support and built-in MPEG2/SVCD/DVD codec.

Freemake Video Converter is video converter that lets convert videos to avi, wmv, mp4 (iPhone, iPod, iPad, PSP, xBox), 3gp, rip dvd, extract mp3, burn DVD and Bluray, create photo slideshow and audio visualization, cut, join, rotate and upload videos, photos and music to YouTube.

MX Player - The best way to enjoy your movies.

The KMPlayer is a versatile media player which can cover various types of container format such as TS (also from Technisat Digicorder), VCD, DVD, AVI, MKV, Ogg Theora, OGM, 3GP, MPEG-1/2/4, WMV, RealMedia, and QuickTime among others. It handles a wide range of subtitles and allows you to capture audio, video, and screenshots in many ways. For playing TS-movies from the Technisat Digicorder you need the KMPlayer.

MPC-BE is a free and open source audio and video player for Windows.

The media player provided pre-installed with all modern Windows versions (7 and higher): Windows Media Player 12 plays more music and video than ever, including Flip Video and unprotected songs from your iTunes library! Organize your digital media collection, sync digital media files to a portable device, shop online for digital media content, and more.

GOM Media Player (Gretech Online Movie Player) is a freeware media player. Key strengths are the ability to play the majority of media files without the need to obtain a codec, and the ability to play some broken media files, both advantages over traditional players, like Windows Media Player. GOM Player supports file formats such as AVI, DAT, MPEG, DivX, XviD, WMV, ASF.

Use Quicktime to watch Internet video, HD movie trailers, or personal media clips.

UMPlayer is a movie player which runs on many systems. It plays most MPEG/VOB, AVI, Ogg/OGM, VIVO, ASF/WMA/WMV, QT/MOV/MP4, RealMedia, Matroska, NUT, NuppelVideo, FLI, YUV4MPEG, FILM, RoQ, PVA files, supported by many native, XAnim, and Win32 DLL codecs. You can watch VideoCD, SVCD, DVD, 3ivx, DivX 3/4/5, WMV and even H.264 movies.