| 1. | Clear description of the referenced document: | 
                                
                                    |  | 
                                            
                                                | Name: | ATSC A/52 |  
                                                | Title: | A/52, Digital Audio Compression (AC-3) (E-AC-3) Standard |  | 
                                
                                    | 2. | Status of approval: | 
                                
                                    |  | This is an approved document by ATSC (Advanced Television Systems Committee). | 
                                
                                    | 3. | Justification for the specific reference: | 
                                
                                    |  | it is a normative reference into ITU-T J.157 (ex J.wtv-req) | 
                                
                                    | 4. | Current information, if any, about IPR issues: | 
                                
                                    |  | None | 
                                
                                    | 5. | Other useful information describing the "Quality" of the document: | 
                                
                                    |  | Noce | 
                                
                                    | 6. | The degree of stability or maturity of the document: | 
                                
                                    |  | Approved 25 January 20138. | 
                                
                                    | 7. | Relationship with other existing or emerging documents: | 
                                
                                    |  | None | 
                                
                                    | 8. | Any explicit references within that referenced document should also be listed: | 
                                
                                    |  |  | 
                                
                                    | 9. | Qualification of
                                        ATSC: | 
                                
                                    |  |  | 
                                
                                    | 10. | Other (for any supplementary information): | 
                                
                                    |  | None |