Apple today announced an update to its free iTunes music software. iTunes 1.1 includes support for more than 25 third-party CD burners from popular vendors such as Iomega, LaCie, QPS and Sony. Apple claims that, since its debut at Macworld San Francisco last month, iTunes has been downloaded more than 750,000 times.

“With almost one million Mac users managing their digital music with iTunes, we are witnessing a revolution in digital music on the Mac,” said Steve Jobs, Apple’s CEO, during his keynote address at Macworld Expo Tokyo. “iTunes 1.1 now supports over 25 third-party CD burners, so even more Mac users can create and burn their own custom music CDs,” he added.

Mac-exclusive iTunes lets users import songs from CDs; compress them into the popular MP3 format and store them on their computer’s hard drive; organize their music using simple searching, browsing and play-list features; listen to hundreds of Internet radio stations; and watch stunning visualizations on the computer screen.

Jobs also announced a new range of iMacs – certain models of which include CD-RW drives. The new Power Mac G4 Cube also ships with CD-RW drives, as do the Power Mac G4 line-up announced in San Francisco.

iTunes 1.1 is available as a free download.