I have just download the new firmware for the above. One part of the new version to me is useful.
before to record in super slow mode one had to use the 1080p format. So if recording in MP4 the camcorder had to be reset in the menu to 1080p.
Version 4 now one can record super slow in MP4 format which makes things a lot easter by assigning a button for it.
In reality, say if recording a dogs movement at the touch of a button a section of the video can be done in MP4 super slow motion without a break in the recording, as one still can do in the old format