JRBarrett: Can't swear on a 777 but on a NG737 all four flight recorder box breakers are in the cockpit (it gets power from both ac buses and both dc buses. CVR is in the cockpit as well. On the ACARS MU it has 2 breakers one on an ac buss and one on a dc buss. both on the flight deck as well.
The 777 unlike the 737, does not have a lot of CB's in the cockpit. Neither the CVR nor the FDR CB's are accessible on the flight deck.