Also there are some flaws in the Blender Internal version you posted. It is certainly not optimized for speed. Set the tiles to 64 or 128. You also have it set for a fixed CPU count of 2 and you have 4 on your system. Change that setting to Auto to make full use of all your cores for a faster render time. Something other than a BOX blur for anti-alias will help your final image look “cleaner”.
I found no or WRONG missing frames. What do you consider wrong in your test output?