| AdditionalDetailCode | Used to designate a particular type of additional information. Refer to OpenTravel Code List Additional Detail Type (ADT). |
| InfoCode | Used to designate a particular type of description such as marketing. Refer to OpenTravel Code List Information Type (INF). |
| LastUpdated | The date and time when the multimedia information was last updated. |
| Version | The version of the content, typically in the form of "1" or "2.3." |
| ID | A unique identifying value assigned by the creating system. The ID attribute may be used to reference a primary-key value within a database or in a particular implementation. |