Itunes album problem?

Could be a couple things in the get info screens. The slightest variations will cause an album to separate in itunes. Upper and lower case variations. Even an extra space. I am thinking it is the album art that might be the culprit here. I recommend making the following the same. Artist, Album Artist, Album, Year, Album Art, and Genre. I prefer to copy and paste when doing this. Cuts down on typos. Make the Disc 1 of 1. Make the new song the last track # and make the second # in track # of the track #'s the total # of tracks. If you need help I will be more than happy to try. Add a comment or email me. Hope this helps. Good Luck.