anyone know a good AV forum?

I need to ask a few questions revolving around transcoding HD MPEG2-transport streams to various formats.

I know a decent amount about digital audio/video, but I am no expert, so I need to try to find some.

Anyone know of a good forum for asking such questions?

This is the place

http://www.dvinfo.net/conf/index.php

I'll give it a shot.. they sure do look serious over there.. making you register with your "full real name" lol