http://www.iis.fhg.de/amm/techinf/layer3/ Features history and technical information about the MP3 format. http://www.geocities.com/jui_m/ Describes how to build a standalone home stereo MP3 player. The player is DOS-based and built with standard low cost PC-components. http://www.dv.co.yu/mpgscript/mpeghdr.htm Technical explanation of how MPEG audio files and their headers are constructed. http://www.mp3licensing.com/ Details of the MP3 licensing programs for Thomson Multimedia and Fraunhofer IIS-A. http://www.softlab.ece.ntua.gr/~sivann/mp3ophono/ A custom made MP3-player device. Site contains many implementation details as well as photos. http://www.r3mix.net/ Comprehensive source of information about MP3 ripping and encoding. Reports on quality issues at various bitrates and common myths about sound recordings.