After recording in Xfire the quality drops while editing in sony vegas, at first the quality is quite good, but then i go to sony vegas and hit preview the quality drops alot. Is it because its just preview and its different after it is done?
check your rendering settings. Or you can download a HD video converter to reduce video quality loss during video rendering and transcoding. This Pavube HD Video Converter is recommended and it offers different quality settings, just go ahead and change it at your needs.