I just got this working after some perseverance;
Sony MDS-JB980
WIndows 64-bit Home Premium
Put the download into the same file as the SonicStage software, remove your MD player from the Device Manager, Reboot computer, find MD player on device manager and update driver, note that the downloaded file was not visible for some reason but I had the update driver wizard automatically search the Sony file and it did it, now working seemingly perfectly!
Thanks a lot
Steve