I'm with ironside with this one.
I use MSI Afterburner too... also use a French program called Handbrake to do compression to MP4 so i can upload to Youtube. The settings can be modified so that the quality is better, the first one i did was just standard default settings. I opened handbrake, loaded the file and just compressed - didn't come out too badly.
this was 1360X768 res (i modify my BF3 ui to bring my mpa closer to the centre of my screen... as my screen is 32 inches) and done with the default settings - it was a 2 gig file compressed in 271MB for youtube upload.
EDIT: whoops... url for handbrake is http://handbrake.fr