Sorry if this has been posted already but I thought that this will interest people. iTunes will soon be selling 24-bit music. Here is a snippet from the LA Examiner...
"CNN reports that Apple may start selling 24 bit versions of songs soon in the iTunes store. That may not seem important to most but this is a great thing for music enthusiasts and people who just love good sounding music.
Professional music producers generally capture studio recordings in a 24-bit, high-fidelity audio format. Before the originals, or masters in industry parlance, are pressed onto CDs or distributed to digital sellers like Apple's iTunes, they're downgraded to 16-bit files. From there, the audio can be compressed further in order to minimize the time the music will take to download or to allow it to be streamed on-the-fly over the internet.
Basically what you hear is a compression of a compressed song.
Many devices can already play back 24-bit audio so we are all at the mercy of the record labels.
Let's hope Apple follows through with this seeing as they are the leaders of digital music distribution."
I haven't posted enough times to supply a link
but if you do a google search "24-bit iTunes" you should get some results.