
except my tool is written in vb.net, but uses mencoder, ffmpeg, neroacc, and some various other cmdline tools to do the actual processing work.
I first wrote it to batch encode all the amvs on aunstudios for streaming, and ended up just adding other formats (such as nintendo DS and PSP formats)
if your curious, I have a earlier copy here but should be treated as alpha software, some things don't work yet. mp4, mp4 for streaming, flv for streaming, mpeg for conventions, and mp4 for psp formats should work 100%, but all settings are optimized for anime and amvs, so may not produce best quality for live action.