I had this problem a few times for every coffret I have (20 to 50 cd) :
I load the album and try an auto correct.
Only a few cd are recognized to be part of this album.
If I take the cd one by one of thus album and try a match to specified album, the cd is generally recognized but not every time. (unable to find a suite …)
In this case if I take 1/2 or 1/3 of the songs of a cd they are recognized.
at the end with a lot of manipulation all the album and it’s cd are recognized
but in a few times, If I made a report of the missing songs
I have a list of missing songs (they are pr�sent !)
at the moment I have 299 songs, and the report says contais 299 tracks 4 are missing.
I save and reload
If I take a look I can see that theses missing files have the same title and track number. (it was not the case at the beginning)
I make an other research or match for this files and they finally get the good name and release
Hope I was clear