ID_system [ATSC Semantics]
The ID_system 8-bit unsigned integer field in an ATSC content identifier descriptor signals the type of identifier used.
useable ID_system values
| value | Meaning |
| 0 / 0x00 | ISAN (ISO 15706) |
| 1 / 0x01 | V-ISAN (ISO 20925-1) |
2-254
0x02-0xFE | see ATSC Code Point Registry |
|