Refer: D7000 manual, page 258. Is this what you are referring to?
Thanks for pointing this out, I didn't go thru so much of the manual. =p
I was testing it out last night. Surprisingly, it does not overwrite the raw file now.
I actually tried a few diff methods to edit the raw file, and none of them overwritten anything.
I also went thru the same editing steps I did when it happened but the problem didn't recur.
It created a new jpg on card 2 instead.
I guess it's a one time haywire thingy. Maybe at that time the camera was busy processing some other stuff?
I've also checked card 2, the raw file was most definitely overwritten, and can not be found anywhere else.
Y do I say this? Last night's test proved that when you edit a file, the jpg is written to disk(card) with the next number sequence.
When my 'error' occurred, a new jpg was not created, and it overwrote my nef file. The number sequence was 1305, 6, 7, 8, 9 etc and I edited 1307 after all these were shot. The jpg created was 1307.jpg, taking the mem slot in card 1 (where raw files should be). In normal cases, it should have created 1310.jpg and saved it in card 2.
This problem doesn't bug me. Just sharing my findings here, in case anyone meets with the same scenario.