Format Factory: Free and multifunctional, multimedia file conversion too.
Ihis tool is a free media converter tool that supports approximately all media conversion:
Format Factory’s Feature:
Support for Most of multimedia format:
Support converting all popular video, audio, picture formats to others.
Repair damaged video files: Repair damaged video and audio file.
Multimedia file size decrease: Can help you reduce the size of the file, not only to save disk space but also easy to save and backup.
Can specify the format conversion: Support iPhone,iPod multimedia file formats.
Support picture commonly used functions: Picture converting supports Zoom, Rotate/Flip, tags.
Easy backup: DVD Ripper.
Multi language support: Supports 62 languages.