 of countries. It is currently operating in South Korea, where S-DMB (satellite DMB) and T-DMB (terrestrial DMB) services are in use. There are also some T-DMB trials currently occurring and planned around Europe. Germany is launching T-DMB for the 2006 World Cup. France is currently conducting a trial in Paris. Switzerland, Italy, and the United Kingdom are also preparing for trials during 2006. The DMB standard is derived from the Digital Audio Broadcasting (DAB) stan- dard that enjoys wide use in Europe for radio broadcasts. The acronym DAB is used both to identify the generic technology of digital audio broadcasting and spe- cific technical standards, particularly the Eureka 147 (EU147) standard. DAB is based on Orthogonal Frequency Division Modulation (OFDM) for transmitting digital data over a lossy radio channel. DAB broadcasts use the MP2 audio coding Mobile TV technique, a close relative of the popular MP3 format, which was also created as part of the EU147 project. S-DMB is a new concept in multimedia mobile broadcasting service that con- verges telecommunications and broadcasting. S-DMB delivers high-quality content for both stationary and mobile clients. It uses the same Code Division Multiplexing (CDM) technology as the mobile phone service. Initially, there are 3 video chan- nels among the 9 offered; the other 6 are audio channels. Eventually there will be a total of 39 channels: 11 for video, 25 for audio, and 3 for data. As a satellite-based service, one of S-DMB's problems may be reception within buildings. SK Telecom (www.sktelecom.com), for instance, plans to overcome this problem by extending the signal receiving areas by installing "gap fillers," although not all areas will get filled. Another drawback is the lack of available handsets. Whereas S-DMB was developed mostly by the private sector, T-DMB was part of South Korea's national initiative to digitize radio broadcasting. T-DMB has rea- son to be encouraged. In March 2005 the Korean Broadcasting Commission (www. kbc.go.kr/english), which 