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Does anyone know of a way to use ML to accomplish voice annotations in stills mode?  I would love to use 5D cameras instead of 1D series cameras but this feature only exists on the 1D.   I see that ML can record WAV, but believe that is only in movie mode, but I would be very appreciative if anyone knows how to accomplish recording WAV voice annotations with stills

I would love to be able to make 1D series style audio annotations to still images by assigning an otherwise unused button to record a WAV while held down.  It would be names the same as  the preceding picture with a .wav extention.  It would need to work in stills mode
Drew