It appears that the tags are stored inside the MP4 file itself in GoPro-specific data "boxes." All the gory details are
*here*
While this isn't something that PD can do at the moment, it's probably worth putting into the
*Cyberlink, listen to this suggestion* thread if you think that other people would like to be able to access them without the native GoPro apps.
YouTube/optodata
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