@Alaktorn
Random mashing between pause and frame advance? o_O
You just press frame advance once, then pause/play will only advance one frame per use, so it works perfectly fine...
@everyone
Dump video will work from any point. However, dump audio will only work from power-on for now. I'm using Virtualdub to combine video and audio, using avisynth scripts (using .audiodelay, and .timestretch when necessary).
@Phazon
In your Dolphin window, go to help>about and tell us what it says in the first line. It should tell you the version or revision you are using. Version 2.0 is very outdated and 3.0 isn't released yet. Revisions newer than r7323 seem to affect syncability, so I'm not sure if it's wise to use them.
You can download individual revisions here:
http://www.dolphin-emulator.com/download.html
You will know you are in frame advance mode if pause/play only advances 1 frame per press.