Introduction to Digital Rights Management - DRM

DRM Unique Material Identifier - UMID

A unique material identifier is a unique code that is used to identify audio-visual (AV) materials. The UMID standard was adopted as SMPTE standard 330M. The basic UMID contains 32 bytes of information and the first 12 bytes are used as a label to indicate that the media has a UMID code. Bytes 13 through 15 define the length of the material and the last 16 bytes of the UMID are a unique number that identifies the specific content item.

A UMID can be extended with another 32 bytes of content descriptive information to create an extended UMID (EUMID). The EUMID contains the date, time and location where the content originated.

Figure 1.10 shows the structure of an EUMID identifier. This diagram shows that an EUMID is composed of the basic 32 byte UMID that contains the media identification information plus additional 32 bytes of descriptive information. This additional descriptive information includes the data and time the media was created, the place (location) that the media was created, along with some additional user information.

Table that describes copyright, patents, trademark, and trade secrects

Unique Material Identifier Diagram

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Digital Rights Management - DRM Books

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Introduction to Digital Rights Management - DRM

Digital rights management systems identify, track, authorize and restrict access to digital media. You will learn how DRM systems help to protect and enforce copyrights, patents, trademarks, and other forms of intellectual property. Discover how to uniquely identify digital media and how to monitor and track the usage of digital media.

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