BSOD when loading video file or song

Code:

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Use !analyze -v to get detailed debugging information.

BugCheck D1, {bc2d0db5, 2, 8, bc2d0db5}

Probably caused by : pacer.sys ( pacer!PcFilterSendNetBufferLists+256 )

Followup: MachineOwner
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3: kd> !analyze -v
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DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.

pacer.sys is Windows QoS Packet Scheduler driver

As you said if the symptoms prior to the BSOD is crappy sound, maybe we can start there:

Code:

start    end        module name
95824000 95965000   CHDRT32    (deferred)             
    Image path: \SystemRoot\system32\drivers\CHDRT32.sys
    Image name: CHDRT32.sys
    Timestamp:        Thu Jan 27 11:35:00 2011 (4D40F5F4)
    CheckSum:         0013BF8B
    ImageSize:        00141000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

as it is quite old too
Conexant - Support

also, while you're at it, it's best to uninstall DAEMON Tools as it's causing BSOD often

Start Menu\Programs\DAEMON Tools Lite Public:Start Menu\Programs\DAEMON Tools Lite Public

and then...

Start Menu\Programs\ѸÀ×Èí¼þ Public:Start Menu\Programs\ѸÀ×Èí¼þ Public
Start Menu\Programs\ѸÀ×Èí¼þ\ѸÀ×VIP×ðÏí°æ Public:Start Menu\Programs\ѸÀ×Èí¼þ\ѸÀ×VIP×ðÏí°æ Public
Start Menu\Programs\迅雷软件 Public:Start Menu\Programs\迅雷软件 Public
Start Menu\Programs\迅雷软件\迅雷7 Public:Start Menu\Programs\迅雷软件\迅雷7 Public
Start Menu\Programs\阿里旺旺 Public:Start Menu\Programs\阿里旺旺 Public

I wonder what these are

cheers

Hi,

But the problems exist before I have installed the Daemon tools but I will uninstall and see whether it is working.
And the rest of the files are just download manager in Chinese version which do not give me any problems prior this.
(Have been using this for years and I only face this problem now)

These symptoms just suddenly appeared. And the BSOD keeps happening when I am watching video files especially through online. But the crappy sound will keep happening whenever I start loading any media files.

And I have uninstalled all the programs being refer above, however the problems still persist. And the sound is becoming more crappy like keep lagging or looks like speaking in a robot voice.
Another symptom I found out is my computer is processing slower than the usual. And the internet browser respond much slower than the usual.

any new BSOD occured?
might get more info if there are any new dmp files generated

I'll go check with someone else to take a look into your problem