Apple has released iTunes 2.0.1, following unexpected data loss problems reported by some Mac OS X users installing iTunes 2.0 – which was released Saturday.

Macintosh users had reported losing data shortly after installing iTunes 2.0 for Mac OS X. An Apple statement warns: "Apple has identified an installer issue with iTunes 2.0 for Mac OS X that affects a limited number of systems running Mac OS X with multiple volumes (drives or partitions) mounted."

Installing iTunes 2.0 can result in the loss of user data. Apple advises that all Mac users in possession of the 2.0 version or beta version of the application for Mac OS X should remove the iTunes.pkg installer file from their Mac. They should also download and install version 2.0.1.

iTunes features iTunes 2.0.1 offers all the utility previously announced for iTunes 2.0. It synchronizes "perfectly" with iPod and introduces new features much requested by iTunes users.

New features include the introduction of a ten-band equalizer with over 20 presets for different music genres. The application can also cross fade between songs. The application's ability to author (burn) CDs has also been improved - it can now burn MP3 CDs, and burns CDs twice as fast as before, according to Apple.

iTunes 2.0 requires Mac OS 9.2.1 or Mac OS X 10.1. It's available for free download from Apple's Web site.

There's also important information for those affected by the data loss problems available from Apple.