es the dependency_id value of the dependency representation for which quality_layer_crc[i] is indicated. The instances of entry_dependency_id[ shall appear in increasing order of their values. The dependency representation of the primary coded picture that has dependency_id equal to entry_dependency_id[ i ] is referred to as target dependency representation. The target dependency representation may or may not be present in the access unit. quality_layer_crc| i specifies the cyclic redundancy check for all the VCL NAL units with quality_id greater than 0 in the target dependency representation. Let crcVal be a variable that is derived as specified by the following ordered steps: Let the variable qNalUnits[ ] be the one-dimensional array of bytes that contains a concatenation, in decoding order, of the bytes of the nal_unit() syntax structures of all VCL NAL units with quality_id greater than 0 in the target dependency representation, in decoding order. Let the variable pLen be the sum of the NumBytesInNALunit variables of all VCL NAL units with quality_id greater than 0 in the target dependency representation. 3. The value of crcVal is derived as specified by the following pseudo-code process: qNalUnits[ pLen ]=0 qNalUnits[pLen+1]=0 crcVal = 65535 for( bitIdx = 0;bitIdx<(pLen+2)*8; bitIdx++){ (G-383) crcMsb = (crcVal>>15)& bitVal=(qNalUnits[bitIdx>>3]>>(7-(bitIdx &7)))& = crcVal = crcVal <<1) bitVal) 65535) crcMsb 4129) When the target dependency representation is present in the access unit, a value of quality_layer_crc[ not equal to crcVal indicates that one or more VCL NAL units with quality_id greater than 0 of the target dependency representation have been removed from the bitstream and that the output pictures may show undesirable visual artefacts. G.13.2.10 Redundant picture property SEI message semantics The redundant picture property SEI message indicates properties for layer representations of redundant coded pictures. In the following, a layer representation of a redundant coded picture is also referred 