Make videos compressed enough to destroy the image quality as much as possible to make any text impossible to read, but still look watchable. Example below (another idea is reducing resolution to 84x48 then scaling the videos back up):
Unfortunately I do not have monopoly to create video. Anyone can create video and I cannot unrelease already released cfgplayer2.
So if I decrease the output quality of the cgplayer2, anyone can downgrade to current version (or simply not upgrade from current version).
Source code is already available.