This part of IEC 62071 defines the format of the data stream for the synchronous exchange ofDV-based audio, data, and compressed video (whose data structure is defined in SMPTE 314M)over the interface defined in SMPTE 305M. It covers the transmission of audio, subcode dataand compressed video packets associated with DV-based 25 and 50 Mb/s data structuresincluding faster-than-real-time transmission for 525/60 SDTI and 625/50 SDTI systems.This standard does not include the data stream of a DV-compressed structure as defined inSMPTE 322M.Space within SMPTE 305M not used by a data stream conforming to this standard may be usedfor the transmission of data other