In a recent work all files are stamped with a mysterious code in the right part of the file
This garbage filer is exactly 28 characters
I wonder if there is any easy way to remove them.
If you still have the "original" Name in a tag like TITLE you could recreate the filename with it.
For example you could use the Convert Tag -> Filename with the Format string:
If you only want to rename your files - and not use the tags - I would suggest to use a specialized file rename software.
If you insist to use Mp3tag for this task, you can have a look at the function
$cutRight and remove your 28 characters from the _FILENAME with this Format string:
Please test it carefully: