You can try any of these. They are all FREE.
Koyote Free Video Converter : http://koyote-free-video-converter.en.softonic.com/
Koyote Free Video Converter is one of the most complete programs to convert your videos under numerous formats. Simple and easy to use, it allows easily to extract videos from sequences and accomplishes conversion with pre-visualization.
Supports large range of formats like AVI, MP4, iPod, PSP, 3GP (mobile phone format), Zune, iPhone, FLV, MKV, WMV, ASF, MOV, QuickTime, MPEG, RM, VCD, VOB...
You can choose to convert only some parts of your videos. It allows to set the Start Time, end time or duration that you wan to extract. You can choose to only extract the sound of your video into MP3, WMA, MP2, AAC...
Quick Media Converter : http://www.cocoonsoftware.com/
Quick Media Converter is a powerful freeware video converter that handles all current formats such as FLV, AVI, DIVX, XVID, MPEG 1-4, iPod/iPhone, Real Media, and M4A. In addition, this whale of a free video converter allows you to record videos from your DV camera or webcam in the classic AVI format and convert the file to any format you need.
Prism Video Converter : http://www.nchsoftware.com/prism/
Prism is a universal video file converter for Windows. It can convert video files from avi, mpg, vob, wmv, flv, 3gp and more into avi, 3gp, flv, mp4, mpg, asf or wmv files. Converts avi, mpg, vob, asf, wmv, mp4, ogm and all video formats that have a DirectShow based codec to AVI and Windows Media Video formats. Load multiple formats and convert to a single output format.
SUPER (Simplified Universal Player Encoder & Renderer) : http://www.erightsoft.com/SUPER.html
SUPER is an easy-to-use Multimedia Encoder and Player. It's a simple, yet very efficient tool to convert or play any Multimedia file. It supports any Multimedia file format. SUPER is the fastest and simplest tool to encode full-length movies to any other format without any time or function limitation. It does NOT require any additional external codecs. They're all built in!
It supports the following formats as input source file:
- Input Image Sequence: jpg, pgm, png, ppm (with sequentially numbered-ONLY filenames)
having the same filename numbered-ONLY format. Example: 0001.jpg --up to--> 0999.jpg
note that this format will NOT work name_0001.jpg --up to--> name_0999.jpg (take out name_)
- Input Video format: 3gp, 3g2, amv, asf, avi, dat, dvr-ms, fli, flc, flv, m2ts, mpg, mkv, mov
m4v, mp4, nsv, ogm, qt, rm(vb), str, swf, ts, trp, ty, ty+, tmf, viv, vob, wmv ..
- Input Audio format: aac, ac3, amr, flac, mmf, m4a, mp2, mp3, mpc, ogg, ra, wav, wma ..
- Input AviSynth Script Files: avs. To write a script and specify advanced encoding commands using AviSynth scripts!