I downloaded several Micheal Buble songs from iTunes, purchased the CD and loaded to iTunes, but only the songs purchased on iTunes show up in Match.
I purchased several songs for my wife to listen to so she could see if she liked them. She then bought the CD's. I added them to my iTunes collection. Previous to using Match, these songs acted the same as any other CD that I imported to iTunes on any of our devices. In iTunes Match, however, ONLY the songs I originally downloaded show up on the cloud, and not the rest of the album. I had the same occurance with other artists, but on Buble seems to have done this. The albums in question are Crazy Love, Micheal Buble, and Call Me Irresponsible. I haven't checked all of the albums/artist/songs, but as far as I have checked his albums are the only ones where this has occurred. The albums are all available from iTunes, so they should qualify for Match.
Mac OS X (10.6.8), Home Sharing