Hi all,
Just to add to the list - I've now got my CMT-M333NT accessible through this version of SonicStage using:
Win 10
the original Sony USB cable
Net MD 64bit drivers found in the Downloads section
As I hadn't read things through thoroughly first, I installed SonicStage first with no luck. I had to follow the steps spelled out in the other post (restarting with the ability to load Unsigned Drivers) to load the Drivers afterwards, but it all worked perfectly.
Now I just need to find someone with a MZ-RH1 so that I can Sync my old SP MD's back to PC so they're not lost!
Shame there's no Audio Out (other than using the headphone jack) on the CMT-M333NT (& such unusual speaker connections) - otherwise I could hook it into my Sonos Connect and blast old MD's through all the house.
Thanks to everyone involved in keeping this thread and the various pieces of software running!