Here’s an odd iTunes bug. Sometimes when you import a CD, the tracks get copied to your iTunes Library and onto your iPod/iPhone when you sync it. Oddly, the albums are not accessible through the ‘Artists’ list in either iTunes itself or on an iPod.
The problem results when iTunes inappropriately labels tracks as ‘part of a compilation’.
To fix it, open iTunes and select the problematic tracks. Right click on them and select ‘Get info’. From the window that comes up, choose the ‘Info’ tab. There, select the checkbox beside ‘Part of a compilation’ and select ‘No’ from the dropdown menu.
You must then re-synchronize your iPod/iPhone.
This bug is present in iTunes 9.1.1 and possibly other versions.