Sorry, got one more question for you SUBMAN
I am using CDEX as well. When I select the OGG format and use the highest quality setting which is 500kbps, is that what you used and said that you couldn't tell the difference between the master and the copy?
Thanks a lot for your help. I have a hopefully nice pair of headphones on the way and I want to get a headstart on re-ripping my CDs to as nice of a format as possible.