Questions Regarding Video Capturing for "Gameplay" Vids

[cdubya]

I've noticed a problem with my vids can be seen here: http://www.youtube.com/watch?v=vx30Rvp6h9A I'm using Fraps to capture, Vegas to edit and VitrualDub to crop, resize, sharpen, and encode. My settings in Fraps are Half-Size capture at 29.97 fps. My full native resolution is 1920x1080 so half of that is 960x540 and I normall size that down to 640x360 for Youtube's sake and to eliminate the Letterboxing I crop out the Letterbox. I've tried both Divx and Xvid as the codec should I go w/ something else, capture at a different FPS level, capture at full screen? Not sure what I'm doing that would cause the jerky playback. I'm running an Intel Core 2 Duo @ 2.67GHz w/ 4GB DDR2 Ram on a SATAII 7200RPM Drive. Running WinXP w/ SP3 and most recent updates. Video card is a BFG 9800 GTX+ w/ 512MB vRam. Thanks in advance for any assistance you may be able to provide.

[jagabo]

Where along the processing does the jerkiness happen? In the Fraps file? After downsizing and converting to Divx/Xvid? After uploading to Youtube?

[cdubya]

seems it's in the source videos so I'm guessing it's either a setting in fraps or win xp that I don't have set correctly

[jagabo]

I've never used Fraps, but you may not have enough horsepower to capture 30 fps while running a taxing game. Maybe if you bump up Fraps' priority?