Another OM-D trap to watch out for...

I wonder if it's the same annoyance that I found in Livetime (which I forget just now - I'll have play soem more).

Pretty sure my E-620 does dark-frame subtraction in burst mode, just as it can do mirror-lock before each frame in burst mode. However, it may depend on what you actually mean by burst mode - of course the mode is as selected, but there may be a difference according to whether the shutter release is held down or not.