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  ITU-T A.5 justification information for referenced document ETSI TS 102 366 V1.2.1 (2008-08) in draft H.721
1. Clear description of the referenced document:
Name: ETSI TS 102 366 V1.2.1 (2008-08)
Title: Digital Video Broadcasting (DVB); Digital Audio Compression (AC-3, Enhanced AC-3) StandardT
2. Status of approval:
The referenced integrated version of the ETSI TS 102 366 standard was approved in 2008.
3. Justification for the specific reference:
ETSI TS 102 366 deals with AC-3 audio format used in IPTV terminal devices.
4. Current information, if any, about IPR issues:
Some information may be available in the ETSI IPR archives. IPR info in ETSI are found at https://ipr.etsi.org/
5. Other useful information describing the "Quality" of the document:
Metadata for Content on Demand and live services described in ETSI TS 102 366 is one of the widely applied definitions for digital TV broadcasting and implemented in a number of devices.
6. The degree of stability or maturity of the document:
The referenced standard has completed the rigorous and comprehensive review and approval process of the ETSI standards development committee. The first version of ETSI TS 102 366 standard (V1.1.1) was approved and published in 2005. This version (V1.2.1) including the referenced text was approved and published in 2008.
7. Relationship with other existing or emerging documents:
The referenced standard has completed the rigorous and comprehensive review and approval process of the ETSI. The first version of ETSI TS 102 034 standard (V1.1.1) was approved and published in 2005. This version (V1.2.1) including the referenced text was approved and published in 2008.
8. Any explicit references within that referenced document should also be listed:
Not applicable.
9. Qualification of ETSI:
ETSI is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
10. Other (for any supplementary information):
None.
Note: This form is based on Recommendation ITU-T A.5