CC3.2 / 6.5b1 r8947

I have two albums called 'Forever Gold' in the library, one a single disc by The Isley Brothers and one a two disc album by ABBA.

All three disks are in separate directories.

None of the discs are tagged as 'Various Artists'

The Isley Brothers disc has the disc number tag unset, the ABBA disc has disc = 1 and disc = 2 as applicable.  The number of discs is not set.

All three disks are grouped as a single album 'Forever Gold' by 'Various Artists'

AlbumsAlbums / Forever Gold
1 album with 49 songs by 2 artists. 

1. That Lady (Part 1 & 2) by The Isley Brothers from Forever Gold  2. Live It Up (Part 1 & 2) by The Isley Brothers from Forever Gold  3. Hello It's Me by The Isley Brothers from Forever Gold  4. (At Your Best) You Are Love by The Isley Brothers from Forever Gold  5. Fight The Power (Part 1 & 2) by The Isley Brothers from Forever Gold  6. For The Love Of You (Part 1 & 2) by The Isley Brothers from Forever Gold  7. Hope You Feel Better Love (Part 1 & 2) by The Isley Brothers from Forever Gold  8. The Highways Of My Life by The Isley Brothers from Forever Gold  9. Harvest For The World by The Isley Brothers from Forever Gold  10. Summer Breeze by The Isley Brothers from Forever Gold  1-1. Dancing Queen by ABBA from Forever Gold  1-2. Knowing Me, Knowing You by ABBA from Forever Gold  1-3. Take A Chance On Me by ABBA from Forever Gold  1-4. Mamma Mia by ABBA from Forever Gold  1-5. Lay All Your Love On Me by ABBA from Forever Gold  1-6. Super Trouper by ABBA from Forever Gold  1-7. I Have A Dream by ABBA from Forever Gold  1-8. The Winner Takes It All by ABBA from Forever Gold  1-9. Money, Money, Money by ABBA from Forever Gold  1-10. S. O. S. by ABBA from Forever Gold  1-11. Chiquitita by ABBA from Forever Gold  1-12. Fernando by ABBA from Forever Gold  1-13. Voulez Vous by ABBA from Forever Gold  1-14. Gimme! Gimme! Gimme! (A Man After Midnight) by ABBA from Forever Gold  1-15. Does Your Mother Know by ABBA from Forever Gold  1-16. One Of Us by ABBA from Forever Gold  1-17. The Name Of The Game by ABBA from Forever Gold  1-18. Thank You For The Music by ABBA from Forever Gold  1-19. Waterloo by ABBA from Forever Gold  2-1. Summer Night City by ABBA from Forever Gold  2-2. Angeleyes by ABBA from Forever Gold  2-3. The Day Before You Came by ABBA from Forever Gold  2-4. Eagle by ABBA from Forever Gold  2-5. I Do, I Do, I Do, I Do, I Do by ABBA from Forever Gold  2-6. So Long by ABBA from Forever Gold  2-7. Honey, Honey by ABBA from Forever Gold  2-8. The Visitors by ABBA from Forever Gold  2-9. Our Last Summer by ABBA from Forever Gold  2-10. On And On And On by ABBA from Forever Gold  2-11. Ring, Ring by ABBA from Forever Gold  2-12. I Wonder (Departure) by ABBA from Forever Gold  2-13. Lovelight by ABBA from Forever Gold  2-14. Head Over Heels by ABBA from Forever Gold  2-15. When I Kissed The Teacher by ABBA from Forever Gold  2-16. I Am The City by ABBA from Forever Gold  2-17. Cassandra by ABBA from Forever Gold  2-18. Under Attack by ABBA from Forever Gold  2-19. When All Is Said And Done by ABBA from Forever Gold  2-20. The Way Old Friends Do by ABBA from Forever Gold