I havent gotten my ipod yet.. but i will be soon, so i am trying to upload my CDs on my powerbook in itunes. I was wondering if someone could explain to me what apple lossless is in general terms and how it works? I am still kinda new to Macs so could you explain it fully. I noticed that after I imported my CD, I would go to the advanced menu in itunes and selected convert to apple lossless... it then converted my files. I went into my music folder that holds all my files and i see that i have 2 of everything I converted with apple lossless. The file extentions are the same sooo... what is going on here. I would like to know also if converting my songs to this format will allow me to have more room on my ipod???? What is the positive and negatives of this converting? I just need someone to explain this whole apple lossless idea to me and what it does. Thanx in advanced!