So, I'm a little frustrated. According to this post and various other internet sources, virtualdub is supposed to allow users to quickly split and join video files.

I am using windows 7 64 Bit and the latest version of VirtualDub (64-bit). I have tried to edit various movie files, and each attempt at editing various files I have done has not worked for me.

1. AVI file A.avi won't load, saying that it can't located the Decompressor for the "FMP4" format. I have tried this solution and this one, and neither of them work. I have tried setting the VFW Decompressor for 'Other MPEG4' setting to XVID or LIBAVCODEC. There is no change in virtual dub

2. AVI file C.avi will load in Virtual Dub, but any attempt to split it gives me an error that I don't have XVID codecs installed. I've attempted to install the proper codecs (Shark's Windows 7 Codecs, CCCP) with no change.

3. AVI file C.avi will load, and it will split, but won't split using the "Direct Stream Copy" claiming the compression algorithm is incompatible. I tried "Fast Recompress" option and it created a 27GB file out of what was supposed to be about a 300-400MB file.

Can someone please give me some insight into what I'm messing up?