Sorry if this is in the wrong forum, but I wasn't sure of the best place for the question. I would like to buy an external DVD/CD burner for my Late 2009 iMac, but will be using it primarily for ripping my music collection to mp3. I will use it for burning DVDs and CDs on occasion, but the primary purpose is to rip CDs. I have done this a little with the internal super drive, but figure an external will do the job more quickly and quietly as well as preserve the internal drive. The question I have is whether there would be a big difference in speed, if any, if I bought a USB 2.0 drive rather than firewire (the firewire drive I was looking at is a Lacie drive that is FW 400). The USB drives I am considering are are from OWC, use either a Samsung or Pioneer drive and are somewhat less expensive (about $35-$50 less).