I prefer to use Apple Lossless as it is actually lossless, and it takes up half the space of an AIFF file.
For me, sound quality differences are even more noticeable through headphones, so I like to keep the files as high-res as possible. You have to strike a balance, of course, as the iPod Touch doesn't have much memory to begin with and it's not expandable.
For me, sound quality differences are even more noticeable through headphones, so I like to keep the files as high-res as possible. You have to strike a balance, of course, as the iPod Touch doesn't have much memory to begin with and it's not expandable.