multidisc albums, DISCSUBTITLE and GROUP tags: conflictual ?

[Andre Gosselin]

I have a multidisc classical album (6 CDs), all ripped inside the same directory and with all tracks tagged with the same Album value. DISCNUMBER tags are set to 1, 2, ... 6, reflecting the disc number inside the album. With this setup I get disc merging, as expected. However, tracks are renumbered. Since I would like to retain my original track numbers and the original album disc separation, I tried (as suggested in a previous post) to set a DISCSUBTITLE tag (CD 1, CD 2, etc) to the album tracks.

The album is composed of works divided into movements. I then went further and used the GROUP tag to group the album movements into their respective works (Symphony 1, Symphony 2, etc). I also defined the Group tag format as "Group.displayFormat={$group^^ - $album^ [^]}" in order to retain the original album title in the group names.

However, minimserver now crashes with a java exception each time I attempt to browse the album (I am using BubbleUPnP as a control point). See the attached log file.

The crash is systematic. To avoid it I have to remove either the GROUP tags (loosing a very intereting functionnality), the DISCSUBTITLE tags (loosing my original track numbers), or the DISCNUMBER tags (this removal has a side effect of disabling the DISCSUBTITLE tags, as can be seen in the log file). Having both GROUP and DISCSUBTITLE tags simultaneously set seems to induce a fatal bug in the server.

I hope I am not trying to achieve an impossible result.
Regards