Sorry for the late response, but unfortunately your crash dumps are not loading properly.
We are suggesting something to you primarily
► Uninstall AVG and use Microsoft Security Essentials - Free Antivirus for Windows
► Other than using ffdshow and Haali's splitter separately, you may use Shark007's FREE Codec solutions - Windows 7 codecs
► If there is BAD_POOL_HEADER
, it is usually Bugcheck 19
, caused by a device driver
. In such a situation, I will suggest you to enable Driver Verifier
Run driver verifier for 24 next hours or the next crash, whichever happens earlier.
Report us back, with crash dumps, if there any.