Is there a way to mute audio for an entire video group?

I'm doing some video editing in Photoshop CS6 and I've got a bunch of footage that I will want to remove in the future but keep for now, in case there's something I need in it. I've put all of it into its own video group and have hidden the group. The trouble is I can still hear those hidden clips. I've got a lot of them and I was wondering if there was a quick way to mute them all, instead of having to go through them individually.

Thanks in advance.