It tells you that a specific frame cannot be reconstructed properly from a compressed format. This may never be visible while the file plays due to your eyes being to lazy to notice it, but the glitch no less is there in technical terms. For the numbers see my website.
Read the ref. I converted the 1.3 gb video to a 137mb swf (instead of directly to flv) using Free Video To Flash Converter. That swf plays fine including the sound.
I opened it it after effect and rendered as an flv (90+mb) and when I play it, no sound. When I tried playing the source swf in after effects, no sound.
I set the render parameters to include the sound but nothing. What is going on?