Comment Re:Good luck with that... (Score 3, Informative) 95
Legally, there's a reasonable limit on how long you can wait (6 years under some theories). That being said, indeed can can never prove non-infringement, and it's equally valid for free codecs than it is for encumbered codecs. Paying the MPEG LA tax does not shield you from trolls, or even from companies that participated in the standard and aren't part of the patent pool (usually, not all declared IPR holders are represented in a pool).