Sony PDW-1500 8-3-3Using UMID Data, What is a UMID

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8-3-3 Using UMID Data

To perform operations from interviewing to editing	information is recorded along with audio-visual data. As
effectively and to detect audio-visual materials easily	one of application of metadata, the UMID (Unique
when reusing them, metadata that provides additional	Material Identifier) is internationally standardized.

What is a UMID?

The UMID (Unique Material Identifier) is a unique

The UMID may be used either as the 32-byte Basic UMID

identifier for audio-visual material defined by the

or as the Extended UMID, which includes an additional 32

SMPTE330M-2003 standard.

bytes of Source Pack to make a total 64 bytes.

For details, refer to SMPTE 330M.

Extended UMID (64 bytes)

Basic UMID (32 bytes)

Source Pack (32 bytes)

Universal label

L

Inst. No.

Material Number

Time/Date

Spatial

Country

Org

User

Co-ordinates

12 bytes

1

3 bytes

16 bytes

8 bytes

12 bytes

4 bytes

4 bytes

4 bytes

Globally unique ID is automatically recorded in clip units.

The UMID is applied as follows.

The Extended UMID is metadata that provides additional

information such as location, time/date, company and so

on.

Material No.

Source Pack

Instance No.

ID generated when

Shooting information (when,

recording

where and who)

Same as the above

Same as the above

Original material: 00 00 00

Copied material: generation number

(1 byte) + random number (2 bytes)

M

M

M

Distinguishing between the

Material source ID/detecting

Metadata pack that identifies

original material and copied

material

the source of material unit by

material

defining the when, where

and who of the material unit

with which it is associated.

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