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Feedback from the survey responses here: >>>gen/8273

C4S vid tags drano 04/28/2019 (Sun) 20:29:16 Id:8316c2 No. 7337
I'd like/need to know more regarding the c4s video tagging.
When I check properties/details (via windows) I don't see any info that would tag me.
Someone posted a while back a program/script that removes it, but I don't want to DL someones homebrew program (sorry).

How do I find/view this data?
Will re-encoding the video with handbrake remove this metadata?
Will using "remove properties and personal information" in windows properties remove this metadata (I'm guessing not)?

thanks folks.
I'm somewhat familiar with the tagging C4S does to clips. I can't really blame you for not wanting to run any scripts or whatever.

If you want to see the tags for yourself, open the files in a hex editor and scroll down to the very end.
The tag starts with 0x01 0C 45 and continues with 48 bytes of what I'm assuming is encrypted info relating to the transaction (card number, name, address, IP, something else). In the dozen or so clips I've bought it wasn't always the same, even in clips from the same store or transaction. Simply deleting those bytes will effectively remove the tag.

But yes, transcoding the clip will remove the tag. I'm not sure what "remove properties" does, but I would not assume it would do what you want. Handbrake may be the easiest way for you to do this, but for the sake of the recipients, please ensure resolution and framerate are the same as the source.

Personally, I find ffmpeg the easiest and fastest way to strip out tags, since it has the ability to demux audio and video from files then mux them back into a new file without needing to decode anything. This process creates an entirely new file without the tag and without touching the audio or video, in a much faster process than transcoding.

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