I don't think you can use MP3 for this type of digital data. MP3 was invented for digital audio, and use compression on the base of some psychoacoustic science.
It's loss compression, probably it will somehow damage digital data.
Daniel Forro
On 12 Sep, 2013, at 8:29 PM, backshall1 wrote:
The Hawk kit gives you all the sysex functions plus a lot more and will greatly expand the functionality of your Poly-800. On the other hand, if you need to reload patches when there is no computer around, just put the .wav file on an iPod or other small audio player. You can also convert it to mp3 or any other format your little device supports. There is no reason to use a cassette tape.
Don B.