iTunes won't group songs with albums

Sometimes you have to click the Compilation box. It gets fixed. And then you can uncheck the compilation box and it's still fixed!

Sometimes iTunes may split an album into one or more partial albums. This split may happen if some tracks from the album have different values for Artist, Album Artist (ignored on iPod), Album, No. of Discs. or Part of a Compilation. Tiny differences such as trailing spaces, accented characters, or variants of symbols can be quite hard to spot. Normally overtyping the desired value for each shared field will complete the grouping of the album into one entity. Occasionally, however, this method seems to fail. In this instance I've found that you can force every field to update properly by adding some extra text - e.g. a trailing X, which once applied seems to complete the joining of the tracks into one album. Once this has happened the extra data can be removed and the album should remain properly grouped.

tt2