From Bigasoft.com:

Bigasoft 3GP converter can change movies into 3GP, MP4 to help you enjoy favorite movies on mobile phones, PDAs. The 3GPP converter supports various mobile phones (Samsung, Motorola, LG, BlackBerry, Nokia, Apple, HTC, etc.) and handheld computers.

The 3GP video converter can convert all popular video formats (AVI, MPEG, WMV, MP4, MKV, H.264, DivX, Xvid, MOV, RM, M4V, VOB, ASF, 3GP, etc.) to 3GP, 3G2, MP4 with high video quality. Meanwhile, you can also convert AVI to 3GP, MP4 to 3GP, MPEG to 3GP, WMV to 3GP using the 3GP converter.

Key Features:
1. Watch on cell phones
With Bigasoft 3GP converter, you can watch your favorite movies and films on various mobile phones (Samsung, Motorola, LG, BlackBerry, Nokia, Apple, HTC, etc.) and handheld computers with ease.
2. Hear sounds on cell phones
The 3GP Video Converter helps you to hear and share fantastic songs no matter where you are.
3. Convert all movies to 3GP
It can convert all popular video formats (AVI, MPEG, WMV, MP4, MKV, H.264, DivX, Xvid, MOV, RM, M4V, VOB, ASF, 3GP, etc.) to 3GP, 3G2, MP4 with high video quality.
4. Extract music from films
It extracts music from movie file to help you hear music from music videos or films on your cell phone.
5. Edit video effort
The versatile 3G2 converter can adjust video effects like video cut, trim, crop, merge, clip and so on to help you make your unique creative movie with ease.
6. Batch conversion
Automatically turn off your computer after long time batch conversion makes your life easier.
7. Pause during conversion
It may also manually pause and resume while converting.
8. Preview before conversion
Adjust output video effects like cut video into small pieces, remove black edge of movie to best watch on your cell phone.
9. Easy to use
10. Support multi-language
Support multi-language like English, German, French, Chinese and Japanese now.
11. Support Windows Vista and Windows 7