Same thing happened to me, can't transfer songs back to PC (that came from PC) or live recordings made with a mic in the mic jack on PCM or LP2/4 settings, and I followed your procedure (although I had to search "sonicstage" in regedit cos I have Sonic Foundry programs too.) However, now I'm not able to totally reinstall/run SonicStage 4.0 cos after the restart, the 1st thing that pops up is a window that's looking for the OpenMG Secure Module, a .msi file, and it can't find it. Since I have no idea where it might be (looked in the available folders & found no .msi files) all I can do is hit Cancel & then it keeps retrying anyway. I did see another thread about downloading an OpenMG Secure Module, but the link provided in it only led to an error page on this bbs. Unless I'm mistaken, isn't SonicStage (or OpenMG for that matter) supposed to install the module as part of normal setup? I even tried installing OpenMG 2.2 from my old MZ-N707 & it did say it was installing the module, but I still had the same results. Is there any way to just get the damn module by itself? I'm using a Hi-MD MZ-RH910 on WinXP Service Pack 2 & was using SS 4.0 just fine until about a week ago. Thanks for any help. aaaaaaaaaaand after following a few extra steps in This thread, I was able to find & delete a lot more registry entries (including some old OMG ones) and the next SS 4.0 install went properly (including the OMG Secure Module) AND I can transfer to the PC again.