Where is 'undo' data stored?

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1

At some point, I made a mistake, using convert tag-tag
I intended to replace ALBUM by %_directory%.
Instead I replaced ARTIST by %_directory%, and I have destroyed artist data in some 15000 files.
I didn't notice at the time, and made nany changes to titles, composers and filenames.
I want to dig back in time to find the album changes without reversing all the other changes I have since made.
Does anyone have technical information where the 'undo' data is stored? A file? In the registry? I'm happy editing text, freeDB, or registry data ...

2

AFAIK you can only "undo" the last executed step.
Immediately after you have done a "wrong" step.

You can not go back in time or choose which step you want to undo.
It's just Ctrl+Z or Edit -> Undo for the last step.

I don't think the undo data is stored anywhere.
A restart of Mp3tag also prevents Undo.

Documentation:

3

AFAIK any data to fallback with is volatile and only available in the current session.
As soon as you close MP3tag, the undo data is gone.

If you have the artist name somewhere in the path, it should be possible do get it from there.

4

I know the data is volatile, and I have left Mptag running. If the data is stored in memory, there's no way to do what I hope for. But if the data is stored somewhere, maybe I can hack it.

5

You find the possible undo-able steps in the Edit menu or the toolbar.

6

I know :slightly_smiling_face: I have attempted this, by using 'undo' repeatedly, but have not found the ALBUM mistake. Maybe I haven't gone back far enough. Maybe Mp3tag continues to offer 'undo' even if it has no effect :grimacing:

7

The data is stored in memory and nowhere else.

8

Thanks for confirming this, Florian.