Furthermore, for private and professional use in music archives, this enables storing the original music data and transferring compressed copies (e.g. to portable devices) without transcoding. Licensing The Licensing Administrator for the MPEG-4 Audio patent pool is Via Licensing Corporation. Licensors offering their SLS patents through the Via Licensing Corporation's licensing program include A*STAR Exploit Technologies Pte Ltd (Singapore), Fraunhofer IIS (Germany), and Nippon Telegraph and Telephone Corporation (Japan). The licensing fees varies - e.g. a licensee shall pay $0.098 to the Via Licensing Corporation for each copy of PC software decoder sold or supplied. Releases In 2011, Los Angeles based hip hop group People Under The Stairs released Highlighter, the first commercial HD-AAC release taken directly from 24 to 48 session files, encoded and sold directly to fans via the website PL70.net See also Bitrate peeling, in Ogg Vorbis WavPack, and OptimFROG DualStream, other formats with lossy + correction References External links International Organization for Standardization MPEG-4 SLS page MPEG-4 SLS - MultimediaWiki Fraunhofer A-Star press release Fraunhofer paper HD-AAC.com Official MPEG web site MPEG-4 Open standards covered by patents