Unique Material Identifier

The Unique Material Identifier (UMID) is a SMPTE standard for providing a stand-alone method for generating a unique label designed to be used to attach to media files and streams.^[1] The UUMID is standardized in SMPTE 330M.<^[2]

There are two types of UMIDs:

Basic UMID: contains the minimal components necessary for the unique identification (the essential metadata) The length of the basic UMID is 32 octets.

The Extended UMID: provides information on the creation time and date, recording location and the name of the organisation and the maker as well as the components of the Basic UMID. The length of the Extended UMID is 64 octets. This data may be parsed to extract specific information produced at the time it was generated or simply used as a unique label.

References

↑ UMID – Unique Material Identifier (PDF), DigitalPreservationEurope, retrieved 2012-09-12
↑ ST 330:2011 Unique Material Identifier (UMID), SMPTE

SMPTE standards

Standards	SMPTE 259M SMPTE 292M SMPTE 296M SMPTE 344M SMPTE 356M SMPTE 367M SMPTE 372M SMPTE 274M SMPTE 424M SMPTE 2022 SMPTE ST 2071 SMPTE color bars SMPTE timecode Digital Picture Exchange Material Exchange Format Unique Material Identifier

Related articles	Broadcast-safe Broadcast television systems

Related standards organizations	National Television System Committee Moving Picture Experts Group ITU Radiocommunication Sector (formerly CCIR) ITU Telecommunication Sector (formerly CCITT) Digital Video Broadcasting European Broadcasting Union BBC Research NHK Science & Technology Research Laboratories

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