3G2 video file format :
The 3rd Generation Partnership Project (3G/3GPP) is a collaboration agreement that was established in December 1998. The 3GPP and 3GPP2 specifications call out specific types of media that can exist in .3gp and .3g2 files.
Best way to cut/trim/split 3G2 file :
GiliSoft Video Editor — Cut/trim/split 3G2 file.
1) Launch GiliSoft Video Editor
Once installed GiliSoft Video Editor, Launch GiliSoft Video Editor.
2) Select one way to cut 3G2 file
There are 3 ways to cut 3G2 file in the easy video editing software:
a) Easy Video/Audio Cutter - Cut one 3G2 file to several small 3G2 clips.
Video/Audio Cutter - Cut wanted 3G2 clips from a lot of 3G2 files.
c) Advanced Video/Audio Cutter - Cut wanted 3G2 clip after video editing(added watermark,subtile...)
3) Load File
Click 'Add File(s)' button, Select "3GPP/3GPP2 - Mobile Phone Video (*.3gp;*.3g2)" in its "Files of type" combo box.
Add your 3G2 file, GiliSoft Video Editor will preview your 3G2 file directly.
4) Select Start time, and End time.
5) Click 'Start' button to start to cut your 3G2 file.
GiliSoft Video Editor is very powerful 3G2 Splitter and 3G2 Cutter, split 3G2, cut 3G2 without re-encode, So It is very fast and without any quality loss.
Buy GiliSoft Video Editor