Sorry, I tried to query the CDs you mentioned but they recognized successfully and the disc numbers were extracted from the title.

Which version did you use to add these albums? The automatic box set recognition only appeared in 6.0.9. Any version prior to that would result in disc number suffices appened to the title...

I suggest that you re-download information for these CDs using right-click and Download CD Info. I think it will fix the problem.

Andrei