Can It be done? Yes
Is it easy..No
First you must take the mp3+g file...which is really two separate files ( one for music, and one for graphics ) convert the mp3 file to wav and then recombine with graphics to form one file.
This must be done one song at a time, and of course you need the right programs.
I could name good programs to use for this, as I often buy songs from the cavs website, and convert them . But naming competeters products in these forums is against policy.
I can, however be contacted at
nitelife41@hotmail.com
And yes, Hoster has Cavs beat hands down....put your jb-99 on ebay