Windows Media Player Says Album starts with a "U" instead of an "A"?

I have a problem with this album I got. The album is "A Una Voz". As you can see, it starts with an "A". Well in Windows Media Player and Windows Media Center it shows up under "U" when I sort my songs by Album. I tried to fix this by renaming the information and it still shows up under "U" when it should really be under "A" because that's what the album name starts with. Is this just a bug or is there a way to fix this?