A communication system comprising: a transmission apparatus and a head mounted display, wherein the HMD comprises a reception apparatus; the transmission apparatus including a generation section adapted to generate data, wherein the data is video data or audio data, an encoding section adapted to encode the data, a first transmission section capable of communicating with the reception apparatus using a first frequency band, and a second transmission section capable of communicating with the reception apparatus using a second, different, frequency band, the reception apparatus including a first reception section capable of communicating with the first transmission section using the first frequency band, a second reception section capable of communicating with the second transmission section using the second frequency band, and a decoding section adapted to decode the encoded data, wherein the first transmission section wirelessly sends the data generated by the generation section and encoded by the encoding section to the first reception section, the second transmission section wirelessly sends the data generated by the generation section and encoded by the encoding section to the second reception section, the first transmission section has a higher maximum possible transmission rate than the second transmission section, and the encoding section encodes the data at a higher compression ratio at the time of transmission by the second transmission section than the compression ratio at the time of transmission by the first transmission section, the communication system further comprising: a control section adapted to control which data, the data received by the first reception section or the data received by the second reception section, is used by the reception apparatus based on the amount of time from generation of the data by the generation section to when the data is decoded by the decoding section, and control whether transmission by the first transmission section or transmission by the second transmission section takes place based on the amount of time from generation of the data by the generation section to when the data is decoded by the decoding section, the encoding section further being adapted to, if a signal-to-noise ratio drops to a given signal-to-noise ratio or less during transmission by the second transmission section, increase the compression ratio of data generated by the generation section. a transmission apparatus and a head mounted display, wherein the HMD comprises a reception apparatus; the transmission apparatus including a generation section adapted to generate data, wherein the data is video data or audio data, an encoding section adapted to encode the data, a first transmission section capable of communicating with the reception apparatus using a first frequency band, and a second transmission section capable of communicating with the reception apparatus using a second, different, frequency band, the reception apparatus including a first reception section capable of communicating with the first transmission section using the first frequency band, a second reception section capable of communicating with the second transmission section using the second frequency band, and a decoding section adapted to decode the encoded data, the first transmission section wirelessly sends the data generated by the generation section and encoded by the encoding section to the first reception section, the second transmission section wirelessly sends the data generated by the generation section and encoded by the encoding section to the second reception section, the first transmission section has a higher maximum possible transmission rate than the second transmission section, and the encoding section encodes the data at a higher compression ratio at the time of transmission by the second transmission section than the compression ratio at the time of transmission by the first transmission section, the communication system further comprising: a control section adapted to control which data, the data received by the first reception section or the data received by the second reception section, is used by the reception apparatus based on the amount of time from generation of the data by the generation section to when the data is decoded by the decoding section, and control whether transmission by the first transmission section or transmission by the second transmission section takes place based on the amount of time from generation of the data by the generation section to when the data is decoded by the decoding section, the encoding section further being adapted to, if a signal-to-noise ratio drops to a given signal-to-noise ratio or less during transmission by the second transmission section, increase the compression ratio of data generated by the generation section. a control section adapted to control which data, the data received by the first reception section or the data received by the second reception section, is used by the reception apparatus based on the amount of time from generation of the data by the generation section to when the data is decoded by the decoding section, and control whether transmission by the first transmission section or transmission by the second transmission section takes place based on the amount of time from generation of the data by the generation section to when the data is decoded by the decoding section, the encoding section further being adapted to, if a signal-to-noise ratio drops to a given signal-to-noise ratio or less during transmission by the second transmission section, increase the compression ratio of data generated by the generation section.