Ripping your collection once slowly is faster than ripping it 3 times "less than perfectly" and 1 correctly...

I ripped my collection at 160kps CBR, then again with the "High Quality" setting in Music Match, then 192kps VBR (again with MusicMatch) and finally in LAME.... It has taken me over a year and I am SO glad to be almost done. EAC (and AudioGrabber) are really quick if you have a large hard drive because you can rip and rip and rip and rip until you go to bed. Then, while you sleep, let the slow encode process finish itself. I wish I would have taken the time to do it properly in the beginning.