Thanks for the quick responses!
Is imgbox still down for you?
I will explain. In fact, I have a really big library, even if there is only a few numbers, many albums are misstaggeg that way. Those files have been taggeg in the wrong way by another people.
I don't use the column browser so I don't have to worry about it, it's just about the library explorer, I really would like to have a clean library explorer with album artists and not track numbers in place of like in the foobar screen. Because it seems they have put track numbers for album artist...
I just discovered the "Definite Custom Sorting" option of the library explorer, thanks to you, do you know the pattern to imitate my old config and put those misstagged files into [Empty] or question marks ?
In my foobar2000 JScript Panel, the pattern was "View by Album Artist // %album artist%|%album%|[[%discnumber%.]%tracknumber%. ][%track artist% - ]%title%" and it was hiding them. I'm almost sure that we can imitate that with MusicBee.