How do I trim an .avi file?

Factual Questions
1

Any good freeware to lop off the last half of an .avi or .mpg?

TIA!!!

2

For AVI files, try AVIchop or VirtualDub. Both are freeware.

For MPEG, use VCDcutter (demo) or TMPGenc (freeware for MPEG1, 30-day trial for MPEG2).