Now this is very interesting indeed. A Russian online music site has come to my attention today called Allofmp3.com. You buy your music per megabyte and they will supposedly encode your purchased songs in whatever file format you want, including Apple’s AAC. The real kicker is that it only costs you $5 to download 500 MB worth of music. Do the math and that amounts to $0.01 per megabyte or $0.04 per song (based on average song file size of 4 MB).