Thanks Sil, the batteries are always replaced during any long shoot especially lightning stuff where one can be there for hours.
Anyway I had finished for the night drove home and sat in the car a while and scrolled through the photos, there were some really good stuff there.
Then i went inside put the card into the computer which i usually do and that was it. nothing
It said access not available card is corrupt.
I then accessed the the card through my computer and clicked on the properties and that said zero byts used and full space available.
I know it had 450 shots on it in the camera.
So is the card playing games, is there anyway to check if there is actually anything on it, or did the computer cause the problem, which is working perfectly by the way, and wipe it all away
I shoved in another card exactly the same with some stuff on it from my second camera and it worked fine and downloaded all the pics, no problem.
So What happened in that short time of space
Pretty pissed off though some of those strikes were like spider webs directly over head, I have never pointed the camera straight up, ever.
Thanks Leon