Ah, well turns out Recuva is only available for PC -- after searching on google it seems there are 'so many' alternatives similar to this one which was quite extraordinary at least to me!
Perhaps any Mac users have any success with obtaining valid MLV files after recovery as for some reason I can't get around the PhotoRec's bug of some sort?
I also tried renaming the file name (MLV from PhotoRec) to as if it were the original MLV file name to no avail.
p.s. I even tried running this program under Wine and got up to the point where there were a bunch of errors (if it helps I got logs) during installation.
The .exe file boots up fine and runs but not past the installation phase (perhaps I need to install more tricks under advance menu where I only installed vbrun6 from within dll) -- any hints?