Music on demand

Music-on-demand (MOD) is a music recording industry certified multi-billion dollar music distribution & subscriber-based industry model conceived with the growth of two-way computing and telecommunications in the early 1990s. Primarily, high-quality music is made available to purchase by way of title subscription license, access by search, and play back instantly using software on set-top boxes (6 MHz separated guard band channels), coaxial, fiber optics, cellular mobile devices, Apple Macintosh, Microsoft Windows, from an available distribution point, such as a computer host or server located at a telephone, cable TV & wireless data center facility. History In 1992, computer modem speeds were limited to less than 28 thousand bits per second (28 kbit/s), compared with uncompressed, pulse code modulated (PCM), music on compact disc (CD) that required 150 thousand bytes per second. As a result, additional bandwidth is required to accommodate delivering real-time audio at CD quality standards: 16-bit frame, 44.1 kHz sampling rate, stereophonic (two channel audio). This prompted telephony, CATV, cellular and satellite providers (Virginia Tech DoD cooperative) to consider changing stand