Help "android.process.media" has stopped

[WalkerYYJ]

Hi all
Canadian (Telus) S3 (SGH-I747M) V 4.0.4 {rooted with stock ROM}

I just rooted the phone using the recovery files from this video:
How to root Galaxy S3 I747M AT&T and Canadian Carriers - YouTube

And although it worked fine and I now have root I am getting the error:
"Unfortunately the process android.process.media has stopped"
randomly after boot.

I cant see how installing super user would have caused this but id love for some guidance before I start wiping/reinstalling everything.

Thanks.