The format of data on the tape is : 100 bytes with the value 0x16 ( SYN, Synchronous Idle ), one byte with the value 0x2A ( * ), the record identification number, the start address ( two characters for the low byte of address, two characters for the high byte ), the end address ( in the same format ), the actual data, one byte with the value 0x2F ( " / " character ), a two-byte checksum, and two bytes with the value 0x04 ( EOT, End Of Transmission ).