Panasonic AG-HMC80P Operating Instructions Manual page 123

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Concerning the handling of the camera's metadata
A special manufacturer area in the control file area under the AVCHD standard is employed for the
metadata which is supported by this camera.
If files are deleted or copied, if clip protection is added or removed or if other such editing operations
have been performed using editing software or a camera recorder which does not support this camera's
metadata, the special area for the metadata will be erased, and the shot marks added by the camera as
well as the PH mode information and other information will be lost. Therefore, before proceeding with
these kinds of editing operations, check whether the camera's metadata is supported.
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