How do you render out multiple passes

Support Compositing and Post Processing
1

How do I render each pass(AO, spec, reflec) out to a separate .png sequence? Thanks

2

Render passes using the compositor. http://wiki.blender.org/index.php/Doc:Manual/Render/Passes
Set an file output node for each pass you you can save out each pass sequence.

3

OK I will try this. Thanks