Data transmission

In order to transmit and receive sample data of different sampling frequencies collectively, the first row of a packet is composed of 4 bytes and the first and second rows are provided with headers prescribed by IEEE1394. Also, the second one byte in the third row is provided with the first counted value (DBS) of a data block counter and a fourth one byte is provided with a next to the last counted value (DBC) of the data block counter. Further, latter half 2 bytes in the fourth row are provided with a value (SYT) of a reference time (time stamp data). First 2 bits in and after the third row are provided with values showing recording media; and the fourth bits are provided with flags showing sampling frequencies; and the seventh and eighth bits are provided with values showing quantized bit numbers; and the second three bytes and after are provided with sample data. The last row of the packet is provided with an error correcting code for data transmitted in and after the third row.