RMVB video file format :
A streaming technology developed by RealNetworks for transmitting live video over the Internet. RealVideo uses a variety of data compression techniques and works with both normal IP connections as well as IP Multicast connection.
Best way to cut/trim/split RMVB file :
GiliSoft Video Editor — Cut/trim/split RMVB file.
1) Launch GiliSoft Video Editor
Once installed GiliSoft Video Editor, Launch GiliSoft Video Editor.
2) Select one way to cut RMVB file
There are 3 ways to cut RMVB file in the easy video editing software:
a) Easy Video/Audio Cutter - Cut one RMVB file to several small RMVB clips.
b) Batch
Video/Audio Cutter - Cut wanted RMVB clips from a lot of RMVB files.
c) Advanced Video/Audio Cutter - Cut wanted RMVB clip after video editing(added watermark,subtile...)
3) Load File
Click 'Add File(s)' button, Select "Real Media Files(*.rmvb;*.rm;*.ram;*.ivr)" in its "Files of type" combo box.
Add your RMVB file, GiliSoft Video Editor will preview your RMVB file directly.
4) Select Start time, and End time.
5) Click 'Start' button to start to cut your RMVB file.
GiliSoft Video Editor is very powerful RMVB Splitter and RMVB Cutter, split RMVB, cut RMVB without re-encode, So It is very fast and without any quality loss.