INDIVIDUAL ELEMENT DEFINITIONS
Extent File Size

 

  • Element Attribute
  • Definition & Guidelines
NAME Extent File Size
OBLIGATION TO USE

Optional

DEFINITION The size, in bytes, of a digital media file.
ELEMENT DEPENDENCIES None
CONTROLLED VOCABULARY Free Text
QUANTITY PERMITTED 0-1
DATA TYPE Text String
NOTES/GUIDELINES

Express the measurement of file size in bytes. Do not use kilobytes, megabytes or gigabytes.

The exact conversion is as follows:
1 Byte = 8 bits
1 Kilobyte = 1024 Bytes
1 Megabyte = 1048576 Bytes
1 Gigabyte = 1073741824 Bytes

If your digitizing or media conversion technology automatically specifies file size, you are good to go. Many digital asset management systems and their associated media ingestion tools will automatically generate the structural metadata associated with a specific digital file, including its size in bytes.

If you need to manually convert a file size into bytes, we suggests using an online byte calculator, such as this web-based application: http://www.matisse.net/bitcalc/
FORMAT/EXAMPLES

5260891
4000 (in bytes)
Use 409600 (in bytes) for a 400 kilobyte file
Use 1258291.2 (in bytes) for a 1.2 megabyte file
Use 4831838208 (in bytes) for a 4.5 gigabyte file
VERSION NUMBER v 1.2

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*Reference the web page Defining Elements: Attributes
for for more information about Element Attributes in general

 

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