Napster, the MP3 software that has prompted a lawsuit from heavy metal band Metallica, will soon be available on the Mac, according to Napster Inc.

The company, whose product downloads and plays MP3s, has posted a note on its home page saying that a Mac client will be available soon.

Napster is based on the proprietary MusicShare technology system that locates bands, and downloads any music available as MP3 files. It also plays MP3 files from inside Napster, and helps users keep track of their favourite MP3 libraries.

Napster has not given a schedule for the release of the Mac version. In the meantime the Web site directs Mac owners to Macster.