In 1993, Dolby established the Headspace company. Headspace developed a new downloadable file format designed specifically for Internet usage called Rich Music Format with the RMF file extension. It had the advantage of small file size like MIDI but allowed recorded sampled sounds to be included at a higher bitrate for better overall reproduction. RMF music files could be played in a browser using the free Beatnik Player plug-in. Later versions of RMF permitted artists to place an encrypted watermark in their files that were supposed to prevent unauthorised duplication. In 1999, Headspace, Inc. was renamed Beatnik, Inc., and specialised in software synthesizers for mobile phones, which it licensed to mobile phone manufacturers including Nokia. Beatnik is no longer in business.