I don't use change the settings one by one anymore becuase they change the settings and what they do all the time, and don't document it. I dont have the time to read up on all their changes anymore, so I leave all the tweaking to dibrom (-alt preset) and r3mix (who hasn't been active with tweaking) Don't believe everything dibrom says about the r3mix setting being obsolete, it still does at great job at lower bitrates than the alt preset settings. However, with HD space getting so cheap, I guess it doesn't matter all that much.