I used to have an old Toshipba labtop. I used to record things on the labtop with a free sound recorder. While it was recording I could turn the volume off so it wasn't loud in the room, but it can still record in the labtop. No other labtop I know off has this feature. So two questions, is this some rare thing? Second if it's not rare, how do I set the settings to do this on a new labtop?