Take a few minutes and record some wav files onto your ipod. Do an A / B / A comparison between them and your lossless and let us know if you get the same results that I did.I did do this Kmelancon. When I first recieved my iPod, I read many comments online about it, and then tried it for myself. I did Apple Lossless, .wav and .aiff; I spent some time playing these over and over and over and I could not distinguish any difference between them. (Knowing more now, I do not I think I should.)
I take comfort in the fact that people smarter than I have also concluded the same. I cannot understand why you have different results.
Here are some comments I posted on another thread about why Apple Lossless is just that, "lossless", if I understand it correctly.