UNDO on MZ-M200/RH1?

[MDane]

Yes, I screwed up and accidentally erased "all tracks" on a HI-MD disc, rather than the one I was trying to get rid of...and after this I realized there is no "undo" in the edit menu. So is there a trick to get undo capability on this unit? And if not, is there a way to TOC clone HI-MD discs maybe...at least allowing me to get back to the data on the disc in question?

[Hungerdunger]

I don't think there's any way to do this with Hi-MD. As far as I'm aware, the only way (assuming you realise your error immediately you make it) is to whip out the battery before the TOC has been written. I've managed to do this when I made a similar mistake to yours.

[MDane]

I don't think there's any way to do this with Hi-MD. As far as I'm aware, the only way (assuming you realise your error immediately you make it) is to whip out the battery before the TOC has been written. I've managed to do this when I made a similar mistake to yours.

Way too late for that! Oh well, I cannot believe there is no UNDO option...even my first MD deck back in the 90's...a 320 had that. It's another case of one step forward, two steps back I guess.

[sfbp]

The problem is, I think, that the heavy duty encryption used means that all sorts of irreversible recalculations have to be done before the disk image (and that is all it is) gets rewritten. Granted you can put a bunch of trackmarks without triggering it, but that's about all, I think. In particular the HiMD system doesn't like it too much when you move stuff from one group to another, I think (not sure yet) it encodes the group ID in such a way that the file isn't uploadable without the right group header. Time and experiment will tell. Meantime don't THINK about moving tracks from your live recording between groups.