They then have to run an analysis pass which compares the HDR10 encode to the DV master to determine the 'difference data' that needs to go into the FEL. Then they do the compression of the HDR10 layer. First they have to hive off the HDR10 layer using the Dolby downconversion tools. Peter said it: it requires more time and thus expense to master in FEL. If FEL is obviously better, why would some authoring houses use MEL? Is it a matter of cost? Is the data size significant in that they would have to compromise in compression bit rate for the film in order to fit it on the disc?
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