no, you cant write actualy data to the minidisc because all it accepts is audio in. you would have to have some kind of minidisc drive. however, what you could write is a program that takes in a file and generates a series of beeps and then you can send that audio to the minidisc to record as binary. or, you could even generate the beeps at different frequencies for ascii, etc. then you would also need a program that takes the beeps in and decodes them to data again.