I've had sucess in getting Rolands PMA-5 Conversion software to run on Windows XP. This is very useful, as this software is the only way to cleanly transfer files in and out of the PMA-5. Ive seen a couple of reports that recording track by track into a DAW creates a fair bit of unwanted data.
The software consisted of two floppy disks. These are availible from a couple of the Yahoo PMA-5 groups. One disk has the conversion software, while the other has a windows 95 serial driver and aditional style patterns for trafwering to the PMA-5.
The conversion software must be loaded from the "A" drive. Which is fine on a machine with a floppy drive, but will require creating a virtual "A" drive on most current floppyless windows machines.
Running the installer and program under the windows 95 compatibility layer is also neccesary to get it running under XP. This is accessed in the properties box of the .exe files.