You can set multiple profiles for multiple drives but I don't know how to run them sequentially on auto. A batch file might work.Concurrent ripping on the same PC won't work unless you can run multiple instances of EAC. I've had more that one installation folder but I couldn't get both to run at once.Hard drive storage is getting pretty cheap these days. You might consider ripping your collection in a loss-less format like Flac or WavPack for archival and PC playback purposes and transcoding to lossy when the need arises or maybe you change to a newer future lossy codec. Ripping takes time, lots of time. Transcoding takes a lot less time.