When i record a movie with fraps the sound is HORIBLE, all crackly and like underwater. In thereFAQ file it suggested compressing it. i did that and it didn't help at all.
ok i' found that if i use my other sound card(sound blaster, as aposed to the onboard sound(asus mobo)) it works great
but when i use my sound card and my headphones on hl2dm the sounds are like calibrated with different pitches or something, it sounds funny.