Filename-Filename Conversion demands indentical structure in the selected filenames. If somewhere in the selected collection there is a deviation in the filename structure the programme halts. Only by scrolling downwards you can find out which filenames has been altered and where the programme halted. That's unnecessarily irritating because it is easily possible to rewrite the programme so all changes are shown immediately and to make the cursor to appear at the file/record where the system halted.
Occasionally MP3tag refuses to make a desired change to avoid two identical filenames. Quite useful. But in case of different Artist or Composer or other relevant differences, identical filenames should be maintained. A provision to indicate in advance which tags to compare before deciding to block identical filenames is required.
Aborting on going actions, immediately followed by Edit-> Undo can result in a muddle of tags. For instance Artist's appeared with Filenames where they don't belong. Fortunately I had recent backups.
Why doesn't Format value action works with:
Field: TITLE Format string: %dummy% %title% ?
By the way, typing in Field: TITLE (or a part) results in TITLESORT. TITLE disappeared in the rollout overview.
Values entered are stored. For instance entered format strings, possibly resulting in long lists in the rollout. How to remove stored values, to maintain a useful overview?
An Action groups deselecting button would be useful. Long lists of action groups reach outside visibility of the window. Individual deselecting is bothersome and overseeing a group in deselecting causes problems.
Storing a combination of action groups in Utils is a nice option. But the order of execution is not stored in Utils. That's a pity. Different combinations of action groups could require a different order of the same composing groups. Now, after changing the order of action groups in the action group windows, problem can arise in execution of Utils.
I will enjoy an action to stop playing. Why? After speedy listening to parts of a mp3 I ad codes to the filename to indentify categories. That proved to be much easier than storing such information in separate tags. I use actions to insert such codes in the filename. That requires stopping playing. More over: certainly it will increase speed of execution to offer the possibility to ad keyboard shortcuts to Actions and Utils.