Hi!
Instead of the sh4 option i use Fraps 2.9.1(free version!)
http://www.fraps.com/
downloadpage
http://www.fraps.com/download.php
select 2 buttons one for screenshot and one for 30 sec. recording
(i use scroll lock and pause/break) and desinate a map you want both to be
stored in.
To make longer shots i think you should buy it...