I have the M20D and I totally love it. We're a three piece band and it gets challenging when we want to play something that has multiple guitars or a keyboard in it, so the solution we use is to create the backing track in Pro Tools, save it as an MP3 file, and then play it via an iPod, and perform along with it. The iPod was a bit inconvenient and we wanted to centralize audio control while playing live, so we've copied the MP3 file to the SD card in the M20D, added the song to the M20D's play list, and added a foot switch to the M20D to trigger the audio file to play. Problem is, once the file finishes playing and the song is over, the M20D's media player keeps looping the MP3 file, over and over.
The foot pedal I got is a really nice unit that has toggle switches for "Momentary" vs. "Latched" and also for reversing polarity. Although I haven't played with the polarity, switching from "Momentary" to "Latched" hasn't made any difference; we play the backing track and perform along with it, and then it loops and begins playing again.
I haven't been able to find anything about this in the Advanced manual.
Anyone have any suggestions as to how I can get the track to just play once without looping?
Thanks for your help!