| It appears that the video files | do not have to be motion pictures; they can be simple JPEG
JPEG is an open standard created jointly by several companies and organizations. I find it highly unlikely that this particular company owns any patents on JPEG methods, and if they did they would have had to enforce them decades ago to realistically maintain any claim of ownership.
You are confusing trademark with patents. Patents can be enforced at will. The GIF LZW patent was only enforced by Unisys during the last couple it was valid, after GIF had become a de facto standard.
OTOH, trademarks lose value if not agressively defended, hence Microsoft going after Lindows (for similarity to Windows).
-Roberto
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