Data on drive but file shows 0k

[jakelight]

I have some video footage that I would like to recover. This is from a SD card in my digital camera. I have pictures from before, after and a shorter video I took after are intact. When I transferred the files over the I ended up with a 0k file which should have been the video file I am looking for - somehow was not copied properly - but I have no reason to believe that the data wasn't being written to the sd while the video was actually being shot.

I have used a tool to create an image of the entire SD and believe the data is there - but somehow there is either an error somewhere in the data which broke the file...maybe the header or index got corrupted?

I don't know enough about the structure of how this data would be formatted to describe what is wrong - but what I am looking for is some tool where I can compare the front and tail end of the data block where this video should be (it should be obvious and a very large file relative to the pictures and the other short video I took after this one) so I can either hex edit in a working header to it or use some other technique to make this a complete contiguous file which I can get working.

Thanks in advance for any tips you can offer.

-jake

[craig6928]

ok have you tried a really good program called isobuster that will work with these type of files

the file you have is not the correct one

then do a scan of the card
and your files should come up

if your only getting half of files then the card has written to the blocks already

[laptokowiec]

What format is it (.avi, .mov etc) ?

[fzabkar]

Shoot a small test movie and then examine its structure with a hex editor. Then you'll know what to look for.

[seed.helper]

try recuva