ATSC A/57 Content Identification and Labeling for ATSC Transport
ATSC A/57 specifies an optional packet stream
Although technically similar to PSIP, A/57 is distinct from PSIP and yet complementary to PSIP.
The ATSC has put users on notice that A/57 will be re-written at some point after final adoption of the V-ISAN standard, and that A/57 will probably be folded into a future edition of ATSC A/65.
ATSC A/57 editions
| Code | Date | Comment |
| A/57A | 20030701 | Current edition |
| A/57 | 19960830 | Original Edition |
See: ATSC Standards
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