My iPod nano (5th Generation) has the same artist/CD listing 2+ times. How do I get it to only list it once?

Hello everyone and merry Christmas!! I just got a new 5th generation iPod nano, and I'm running into a problem when I'm loading new music onto it. Let's say I add the whole album of Michael Jackson's Greatest Hits to my iPod, there's a few albums where I did this and my iPod is listing the CD 2 or sometimes even three times, and each time the CD name is listed, it has a few different songs from the album, but they all aren't grouped together.

How do I get my iPod to combine the three of the same albums into 1 so all the albums songs are together? When I highlighted all of the songs on my iTunes on my computer, I pressed information on all of them, and they all are listed with the same artist, CD name, picture, etc. with a check mark next to it, so I know it doesn't have different information.

Can someone help me, it's driving me crazy!! Thanks so much!! Merry Christmas to all!!