Apple Computer sold over 70 million songs through the iTunes Music Store in its first year. The company, which today (April 28) marks the one-year anniversary of the music store's launch on the Mac OS

Apple Computer sold over 70 million songs through the iTunes Music Store in its first year.

The company, which today (April 28) marks the one-year anniversary of the music store's launch on the Mac OSX platform, reports it is selling 2.7 million songs per week -- a rate of 140 million songs per year.

The service now features more than 700,000 songs from all five major labels and 450-plus independents.

Apple today also launched an updated version of iTunes that can convert unprotected files encoded in Microsoft's Windows Media into the iPod-compatible AAC format. Consumers who rip their CDs into Windows Media files can now have those tracks automatically converted for transfer to the iPod.

In a concession to the labels, the number of times a user can burn the same playlist to a CD is being reduced from 10 to seven. Other services allow playlists to be burned five times.
However, users can now play songs purchased from the iTunes Music Store on up to five personal computers -- two more than before.

Other new iTunes features include iMix, an application that allows iTunes users to post playlists for others to listen to; radio charts from more than 1,000 radio stations; music videos and movie trailers along with links to buy the related soundtracks; and the ability to create and print art inserts for burned albums and compilation CDs.

In an anniversary promotion, Apple is giving away a free song of the day for the next eight days, including cuts from Foo Fighters, Avril Lavigne, Courtney Love, Annie Lennox, Jane's Addiction, Counting Crows, Renee Fleming and Nelly Furtado.

Following the anniversary promotion, the iTunes Music Store will continue to offer a "Free Single of the Week" from up-and-coming bands.

ITunes is also offering exclusives from the Foo Fighters catalog, available for the first time, and the Motown Records catalog, including the label's first 45 singles, and 45 hard-to-find albums from the Motown archive.

ITunes, which offers exclusive tracks from more than 150 artists, also has new exclusives with the Beastie Boys, and Walt Disney Records.