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Since the early days of film and television, meta-data
such as shot number, slate information and other pro-
duction notes has been used increasingly during the
production process. While much of this data has been
generated and stored on paper, the use of computers
for storage and management of meta-data has grown
significantly. However the lack of a unique identifier
for each segment of material recorded on the filed
tape has made it difficult to link this meta-data to
the actual material. HDW-730S and HDW-750P
camcorders solve this problem by providing the capa-
bility to generate and record a globally unique identi-
fier relating directly to the video material. This process
is made possible by recording UMID (Unique Material
Identifier) information.
Meta-data Handling
UMID* recording
The UMID is a unique identifier for picture, audio and
data material that is created and globally unique. The
HDW-750P/730S automatically generates and records
UMID on tape at every scene change. By adding UMID
information during the acquisition process, future benefits
such as easy search of material during editing, and archive
can be realised. Sony supports UMID as well as Extended
UMID** for further operational convenience.
*
UMID is standardised as SMPTE 330M
**
Extended UMID adds Signature Meta-data, time, positioning, and user information to the Basic UMID.
Extended UMID (64 bytes)
Basic UMID (32 bytes)
Universal
Label
Material
Number
Time/Date Spatial Co-ordinates Country Org User
12 bytes 1 3
bytes
Inst
No.
L
Material
Number
Time/Date Spatial Co-ordinates 4
bytes
4
bytes
4
bytes
Signature Metadata (32 bytes)
15