Problem with Multidisc Albums

[Lio84]

Dear Simon

My problem is that the behavior is different from one multidisc album to another and I don't understand why.

Sometimes, with different artist names in an album, the multidisc albums are presented in a good way, and sometimes not. And I don't use the "AlbumArtist" tag in all cases.

The method used to tag the multidisc album is always the same. For example :

Album name = "Jacqueline du Pré-Concerto Collection, Disc 1"
Artist = "Berliner Philharmoniker" for all tracks
Discnumber = 1
Total Discnumber = 4
All the files of Disc 1 are in a folder named "Jacqueline du Pré-Concerto Collection, Disc 1"

Album name = "Jacqueline du Pré-Concerto Collection, Disc 2"
Artist = "Wiener Philharmoniker" for all tracks
Discnumber = 2
Total Discnumber = 4
All the files of Disc 2 are in a folder named "Jacqueline du Pré-Concerto Collection, Disc 2"

etc...

All the folders of Disc 1 to 4 are contained in a folder named "Jacqueline du Pré-Concerto Collection"

I would like to keep this organisation of folder.

Is there other tags influencing the presentation of multidisc albums ?
Is there a specific option to choose in Minimwatch ?

Many thanks for your help !!

Lionel