Just did a recording from Gears of War PC... 1280x768, RGB24. Fraps compressed it to 147Mb/s on the fly, while playing. The MSU codec and Lagarith both beat it, but ended up around 142Mb/s -- while taking a LOT longer to encode (three to four times longer than the video runtime).
I am using a quad-core, so perhaps bad multithreading is why Lagarith and MSU can't keep up. But also, Fraps easily played at 30fps. Lagarith and MSU struggled to get 10.
Perhaps MSU and Lagarith just suck at RGB24?
The sad part is that there isn't a VfW or DirectShow encoder for Fraps
