The format on the Smart Media card is not helpful. What you need is a good soundcard. You can either mix down in your box and run the stereo line out (-10, not +4) to the left and right line ins on your soundcard in real time (the easy way), or- send the tracks, 2 at a time, panned hard left and right, to the left and right line in on the sound card, then manually synch the tracks and mix them in the computer. This is more work, but allows you to use whatever software in the computer you want for effects and mixdown. You *can* use a Smart Media card reader, but I think the Boss records in MP2 format, which is uncompressed, and you will find that this generates some huuuuge audio files, which can then be ripped to MP3 and burned to CD. I found it easier to just send the tracks by analog line signal in real time than to pretend that the Boss is a computer. Best of luck-Richie