HDR titles must include both an HDR and an SDR mezzanine file delivery, matching the delivery requirements of SD/HD. The only difference between the SDR and HDR mezzanine files should be the colorspace. Otherwise, the files should be identical, including the same resolution and framerate.
Any timed text or audio files delivered with UHD/HDR package should conform to both the SDR and HDR mezzanine files. The inventory should reference both the SDR and HDR mezzanine files. Further, the HDR10 metadata must be included in the inventory section of the MMC. Both the SDR and HDR mezzanine files should then be referenced by the same presentation. For more information, see the MMC sample files.
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