iTunes 4.5 users can choose to use different audio formats for any track that you import from CD. iTunes lets you convert your music to MP3s at high bit-rate (320 kbps) for no additional charge. Using AAC or MP3, you can store more than 100 songs in the same amount of space as a single CD.
However, discerning customers and audiophiles want true CD audio, and now iTunes 4.5 can give you that quality with the new Apple Lossless encoder. You