yeah, this was a concern f mine too, the more I loved this controller for the first 5 minutes of release, the more I don't like it. If I needed to grab a song at a job and throw it on a flash drive, or if a client walked up with a track on a drive, theres no way for me to play it other then carrying blank cd;s and having to burn it to cd to play which means your back to bringing your laptop to every gig. They should have allowed more then 1 drive to be plugged in through a hub or something
oh well, this was the controller I was really looking forward to but have to pass