As I can see this topic is still alive so I'm taking the chance to kindly ask you if there's a handy and low-cost solution about a similar problem that I have:
I am the owner of two MDs, one of them is the MZ-RH1 of course which refuses to play tracks on every single disc that I have after a certain period of playback time (usually after 5-6 tracks from the beginning). That happens on new transfers. The old NET discs are still playable in their entirety.
The recording of the songs via Sonic Stage can still be done without further problems but as it seems something's wrong with the new transfers. So it should be a kind of a read error or a transfer issue after a certain period of time. A guy on YouTube mentioned something about playing with the screws torque or an electrical alignment solution which I haven't tried yet. I even removed the top and bottom part of the MS's body in order to reassembly it but there was no improvement at all.
Any thought or actual help would be much appreciated. Thanks in advance.