How do i get rid of compilation sorting?

i just copied my whole library back to my computer, but for some reason some albums don't come up in alphabetical order. they come up at the end of the all the albums. i tried highlighting all the albums by that artist and making sure name was spelt right but it still seperates them under album, where as other albums i have by other artists aren't seperated. i think it has to do with some sorting feature.