I hate when CD number is in the title in a CD set ! there's a field in the tag to put on CD number, so that when you choose to listen to an album with multiple CDs, you actually play the full album and not just one disc ! 
But they still get listed as separate in some situations, and sometimes they get listed out of order, and that bugs me a lot. But dont get me started on the inconsistencies of ipod/phone/car interfaces with my music layout. We could be here all day.
I like it the way I do BECAUSE of the problems I have encountered.
Thankfully I have the power to get as obsessive as I want with my music file organization, but still find the iphone screws things up.

Cheers