I have moved most of my CDs to iPod through Mac iTunes using a combination of "uncompressed" formats, always with error correction. I did some listening comparisons between CD and iPod (using a Benchmark D/A) and have heard very subtle differences, mostly in favor of CD, but easily rationalized by the convenience of use with iPod. We can discuss the pros and cons all day concerning what source is kindest to the bits, but for the money and flexibility I really like the iPod/Wadia setup.
