Try to make the following changes:
Code:
[HKEY_LOCAL_MACHINE\Software\Arcsoft\ArcSoft MMS UA\Config\mm1\MMSCSetting\SampleMMSC]
"WAP2SendDefaultSize"=dword:004e2000
"WAP1SendDefaultSize"=dword:004e2000
If you convert the values above to decimal, they should be 5000k