Name:Format Factory (Free)
URL:http://www.pcfreetime.com/formatfactory/index.php?language=en/
Description:Free and multi-functional, multi-media file conversion tool 
Utility:This free tool – 

• Converts all the popular video, audio, picture formats to others
• Repair damaged video and audio files 
• Decrease the multi-media file size
• Picture conversion like zoom, rotate, flip, tags etc 

Special Features:

• Supports most of the multi-media format
• Easy back-up
• Multi-lingual support