For all questions concerning Arranger Keyboards/ Styles post over at the General Arranger Keyboard forum. You'll get your answers faster that way.
I actually doubt if you can replace the floppy drive with any other means of media storage. Unless yamaha themselves support the modification (with software etc) there's no chance of it. ...Or a very slim chance at that.
MIDI Sysex dumps (if that's what you meant by using something in the MIDI cables) are going to be way slower than your floppy disks so I don't think you'll find much use for it.
...But ask the guys over at the GAK anyway. may be there's something I don't know.
cheers,
[This message has been edited by 3351 (edited 10-08-2007).]
_________________________
A gentleman is one who never hurts anyone's feelings unintentionally.
- - - Oscar Wilde