Not only that, but doesn't MP3 remove "sounds changes you can't hear" or whatever, whereas jpg removes "color changes you don't see"? There is a parallel there,

Not only that, but doesn't MP3 remove "sounds changes you can't hear" or whatever, whereas jpg removes "color changes you don't see"? There is a parallel there, but I would imagine they would be quite different since one is based on human auditory response vs visual response.