Thinking of the future, what can be done about FDR/CVR? Maybe there should be several devices, synched, one fixed as at present and two ejected by force - compressed gas, spring, or a small pyrotechnic charge? The technology is off the shelf and has been for decades in 'cluster bomb' systems which survive incredibly high forces. One to my knowledge survives > 100,000g (sic). We cannot accept the present designs as fit for purpose.