MediaCoder!

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).

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.

fre:ac (formerly BonkEnc) is a free audio converter and CD ripper with support for various popular formats and encoders. It currently converts between MP3, MP4/M4A, WMA, Vorbis, FLAC, AAC, WAV and Bonk formats.

Format Factory is a multifunctional media converter and DVD ripper. It will convert (and compress):

VidCoder is a DVD/Blu-ray ripping and video transcoding application for Windows. It uses HandBrake as its encoding engine.

XMedia Recode can convert nearly all popular audio and video formats including 3GP, 3GPP, 3GPP2, AAC, AC3, AMR, ASF, AVI, AVISynth, DVD, FLAC, FLV, H.261, H.263, H.264, M4A , M1V, M2V, M4V, Matroska (MKV), MMF, MPEG-1, MPEG-2, MPEG-4, TS, TRP, MP2, MP3, MP4, MP4V, MOV, OGG, PSP, (S) VCD, SWF , VOB, WAV, WMA and WMV.

AnyDVD works in your computer's background to automatically remove the copy protection off a DVD movie, allowing you to rip the DVD onto your computer. You can also remove the RPC region code, thereby making the movie playable anywhere. AnyDVD also decrypts protected audio CDs, HD DVDs, and Blu-ray Discs (the latter two with AnyDVD HD).

MeGUI is a video conversion application, which was primarily designed to be a DVD ripper, but is capable of many transcoding tasks. It is essentially a frontend for many free tools, but also includes a number of utilities to enhance the conversion process.

AnvSoft Any Video Converter is the most renowned video converter for converting video files between various formats, with fast converting speed and excellent video quality.It can clip any segments and optionally merge and sort them to make a creative movie. And even more, Any Video Converter can crop frame size to remove any unwanted area in the frame just like a pair of smart scissors. Additionally, it gives you the ability to burn videos to DVD-R/RW, DVD+R/RW disc. It also adds the MP4 Faststart option to play back mp4 video in the stream way. »

dBpoweramp contains a multitude of audio tools in one: CD Ripper, Music Converter, ID Tag Editor and Windows audio shell enhancements. Preloaded with mp3 & Wave codecs, practically every audio codec can be installed from Codec Central, as well as Utility Codecs (perform actions on audio files).

QWinFF is a GUI for FFmpeg, a powerful command-line media converter. FFmpeg can read audio and video files in various formats and convert them into other formats. QWinFF provides an intuitive graphical interface and a rich set of presets to help you use ffmpeg easily without having to type a single command. Advanced users can also adjust conversion parameters like bitrate and sample rate in detail.

Free application that converts audio files to MP3, AAC, AC3, WMA, FLAC, M4A, OGG or WAV format. Moreover, the program allows extraction of audio tracks from video files without loss of sound quality. In addition, the program allows splitting input files based on chapters (often found in audiobooks).