Prof Quatermass

Dear all, I have a Grundig MD35 - it's a midi-sized machine which popped up under various brands over the years. I bought it new and it only had light use before I stored it (having bought a MD LP separate deck). I dusted it down today and inserted a disc which played perfectly. BUT... when I ejected the disc and inserted another it flashed a mecha error message at me. I've popped the case off and examined the mech. The disc inserts and ejects fine but once it is loaded the disc doesn't spin. Could this be a belt issue and - if so - does anyone have a schematic of the mech? I've worked on Sony mechs and found them easy to repair but this one looks like a different level of hard. Any help would be appreciated.

Has anyone got a solution for this problem: SonicStage will rip my CDs and import music on my PC. It recognises the NetMD (I've tried three different units) but when I try to transfer my music it says it can't transfer the tracks. There is no DRM attached to any of the tracks and the NetMD used to work fine on my ancient HP laptop. I'm running Windows XP Media Center Edition (2004) and I'd hoped to use the laptop purely for music transferring duties. I've tried SS 4.3 Ultimate Edition and when that didn't work I uninstalled and downgraded to ver 3.4 with the same disappointing results. Any suggestions gratefully received...