hey guys, well i found a way to split the BVH to smaller sizes.

hehehe, just open with a text editor like BBedit, and delete a chunk of the numbers at the bottom of the bvh. It works!!!  I got a 511 frame bvh down to 50 frames.

great!!

of course , i won't really know what i'll end up with until i see it in poser but it's ok, because i mainly want the BVH to get chunks of animations so i can make looping short animations and animation parts  that can help me make my own animations