So I've got 17,000 songs, well in the itunes match limit..... but there's a couple of things I've heard I'm hoping someone on here might know. 1. Ive got a lot of tunes in 320 KBPS (because I dj a bit), my main library is on my desktop machine, if I subscribe to itunes match, will it replace my tunes that are 320 KBPs with the 256KBPs AAC ones off the store (if it can match them with a store copy) locally on my desktop machine? And will it replace 320 KBPS MP3's that it matches on my laptop? Basically I don't want it to replace any physical files on my laptop or desktop without my say so. 2. Does it replace the explicit version of songs with clean versions? I'd be so angry if I suddenly found all of my music censored.