for better video quality, run the game in 1152x864 or lower. otherwise fraps has to downgrade while recording, which leads to grainy images.
this is because fraps cannot record higher than 1152x864 on a single core processor. if you have a dual core, you can go as high as 2560x1600, so it's not an issue ;-)
for more on this (and some other tips about fraps and sony vegas), see
furä's video tutorial (he used to make really nice vids for curse and nightmare's asylum before that).
edit: ok, i tested it myself and checked back with the developers. for the high resolution recording with dual core you need fraps 2.8 or higher.
Edited, Dec 5th 2006 10:36pm by Turicus Edited, Dec 5th 2006 10:40pm by Turicus