Thread:Judy L. Hopps/@comment-26538714-20160205233525/@comment-28794970-20160206192039

Remastered versions usually have higher quality and sound clarity, though you should be careful because a good number of "remastered" versions were mixed at such high volumes that they are far more distorted than their original counterparts.

Of course, noticing the difference isn't that easy for most people, so you should be fine with the iTunes remasters.