Help! my PS3 + Intensity Pro has a gargled audio issue.

[Messenger]

I need help, i'm not a geek when it comes to computers and such... i'm just average... so yeah i need an assistance if possible.
My problem is when i capture my PS3 gameplay and try to open it with WMV, it gives this gargled sound, the frame rate is decent and the sound is sync for a minute, but after a while the frame rate slightly drops and it gives the gargled sound, but it never out of sync though. Anyone had an issue like this before?

My PC specs: Windows Vista, Core I7, 12GB Ram (Don't know why i have that much..) GTX 295, Asus Xonar DX audio card 300GB HDD.
Software in Use: Blackmagic Media Express and Windows Media Player.. thats it.

Thanks in advance.

[Messenger]

Can someone help me out please? I tried adobe premiere pro but it won't connect my device, it keep saying Offline, i have no idea how to use premiere pro, i'll appreciate if someone can show me a step by step tutorial.

Like i mention before i am using black magic media express, i have to 2 types software of black magic media express, 1 has a reel icon, other one has i.e. refresh button looking icon. Whenever i use the the one with the refresh looking icon, i get the gargled sound, The other media express software doesn't, instead the audio gets out of sync.

Also is there a way to lower down the frames? i'd just recorded a 1 min video and the size of that is almost 9gb.. Please help me out!