does it change anything in your actual/original iTunes library?
I have nearly 25,000 songs which i'd say about ~95% are in the iTunes store which is perfect from my understanding of iTunes match.
But I'm curious does it replace the songs in your original ITunes library with the 256Kbps iTunes tracks?
I have a lot of Apple Lossless tracks and don't want the original library messed with or tangled, but have my MacBook Air at work that I'd love to have iTunes match play tracks from my iMac library (main server).