We don't have the technology to build a video player that'll last 10,000 years, nor a power source that will last that long either. Leaving data media is fine,

We don't have the technology to build a video player that'll last 10,000 years, nor a power source that will last that long either. Leaving data media is fine, but anyone with the technology to play such media will probably understand the danger quite quickly if explained to them in words.