I've explained MPEG compression artifacts lots of times before.
qresear.ch
This time I'm tired of repeating so just read
https://en.wikipedia.org/wiki/Compression_artifact
It's in pretty tough shape but fixed spelling because excellent concept.
We got 12 in meme lib
I hope the aim is accurate because don't want to fry terrestrial sites
73 fren. CYa later
I'm toast. Maybe tomorrow will be better.
o7