Editor: FOURCC’s and codecs names:
MPG4: Microsoft MPEG-4 version 1
MP42: Microsoft MPEG-4 version 2
MP43: Microsoft MPEG-4 version 3
Both AVI and ASF/WMV encoding and decoding supported.
If you don’t need MP43 encoding in AVI; or MPG4, MP42, or MP43 decoding in a VfW (Video for Windows) utility like VirtualDub; it’s probably best that you get one of the Microsoft Codecs Installation Packages instead.