VirtualDubMod allows you to do what you require.
You can download VirtualDubMod from:
1. Editing your file
Once you've installed it and run it. You need to open the file using
VirtualDubMod. Either drag and drop the file, or use the File->Open
menu. It needs to do some conversion process for MPEG2 files, so that
might take some time.
Once the file is open, use the slider at the bottom to move around the
file. Go to the start of the clip you want to cut. Then click on the
button that looks like a "P" turned left by 90 degrees. It's the
second button from the right in this picture:
Then go the the end of the clip and click on the button on the right.
You should now have a highlighted section in blue. Using the Edit->Cut
menu, you cut out that part of the clip.
2. Saving your file as DivX
Go to the Video menu and make sure that "Full Processing Mode" is
selected. If you then go to Video->Compression, you can choose DivX
and configure the codec for bitrate, resolution etc.
By default the audio is copied over as-is. If you want to recompress
the audio. Go the Streams->Stream list. Right click on the audio
stream and change "Direct Stream Copy" to "Full Processing Mode".
Right click on compression, and choose the new codec.
Clicking on File->Save as Avi, will save your file to the specified
location with the specified codecs. Depending on the DivX settings you
chose, and the speed of your computer, it can take anything from "half
real-time" to "twice as long as real-time" to convert and save the
If you need anymore help or advice, please do not hesitate to ask.
Clarification of Answer by
27 Dec 2004 05:53 PST
The DivX codec is a bit weird in that way. On the compression settings
in VirtualDub, you need to click on the profile, and change/configure
the profile. In there you can change the resolution/size of the video
and the FPS. I don't think it automatically figures out the
resolution/FPS, which could explain why you get lower picture quality.
You shouldn't be getting lower audio quality though.
I wouldn't worry about the changes in bitrate/filesize, since bitrate
is always an approximation. 1850kbps is a lot for DivX. 900-1200kbps
is DVD quality. Quality is not going to get better via reencoding,
however there shouldn't be a substantial loss.
If you don't want to modify the video, you can try choosing "Direct
Stream Copy" instead of "Full Processing Mode" for the video, however
I'm not sure VirtualDub can save to MPEG2. You can let it save to a
.avi using that setting, then rename the file.
There's a list here of other software you could use just for
joining/splitting, look for those that support MPEG:
Cutting and Joining Tools
If you need anymore help, please do not hesitate to ask.