RECOMMENDATION ITU-R BR.1353 … RECORDING OF DATA IN THE USER BITS OF THE LONGITUDINAL TIME CODE
APPENDIX 1 … Picture aspect ratio and pan-scan data
1 Description of use
1 Allocation of time-code user bits
2 Picture aspect ratio and pan-scan data
    2.1 Image aspect ratio data and pan-scan flag
    2.2 Pan-scan data
APPENDIX 2 … Date data