TASCAM Digital Interface Format: An eight-channel digital interface used to connect TASCAM MDMs to one another and to compatible external gear. The TDIF format uses master clock sync and carries eight channels of digital audio on a electrical cable with 25-pin D-sub connectors. Each wire in the cable carries two multiplexed channels, which closely resembles AES/EBU. The entire cable can handle eight channels to and from any compatible device, and so is bi-directional. The maximum bit depth is 24 bits, and the data rate is four times the sample rate. See also Lightpipe.