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5-3-8 Using AMID Data
To perform operations from interviewing to editing
effectively and to detect audio-visual materials easily
when reusing them, metadata that provides additional
information is recorded along with audio-visual data on a
tape. As one of application of metadata, the UMID
(Unique Material Identifier) is internationally
standardized.
Basic UMID (32 bytes)
Universal label
L
12 bytes
1
A globally unique ID is automatically recorded at every
shooting.
The Extended UMID is metadata that provides additional
information, such as location, time/date, company, and so
on.
Instance No.
Original material: 00 00 00
Copied material:
generation number (1 byte) +
random number (2 bytes)
Distinguishing between original
material and copied material
Using the Extended UMID
You have to enter a country code, organization code, and
user code. Set the country code referring to the ISO-3166
table, and set the organization code and user code
independently.
For details, see "UMID menu setup" on page 100.
Extended UMID (64 bytes)
Inst. No.
Material Number
3 bytes
16 bytes
Material No.
ID generated when shooting
Same as the above
M
Material source ID/detecting
material
What is a UMID?
The UMID (Unique Material Identifier) is a unique
identifier for audio-visual material defined by the
SMPTE330M-2003 standard.
The UMID may be used either as the 32-byte Basic UMID
or as the Extended UMID, which includes an additional 32
bytes of Source Pack to make a total 64 bytes.
For details, refer to SMPTE-330M.
Source Pack (32 bytes)
Spatial
Time/Date
Co-ordinates
8 bytes
12 bytes
The UMID is applied as follows:
Source Pack
Shooting information (when,
where and who)
Same as the above
M
Metadata pack that identifies the
source of material by defining the
when, where, and who of the
material unit with which it is
associated.
Functions of UMID data
The UMID data enables the following:
• Addition of a globally unique ID to every shot of audio-
visual material. The unique ID is used to detect the
material source and to link it with the original source
material.
• Distinguishing between original material and copied
material. 00 is added to the Instance Number for original
material.
Country
Org
User
4 bytes
4 bytes
4 bytes
M
Adjustments and Settings from Menus
99
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