SD card read/write with Arduino

Downloaded & tried, thanks bobemoe!

Here is what is in my data.bin file after running the sketch:

C:\arduino-0012\output.jpg
-< edit >- bugger - how do I put a photo in here?!? There should be a bmp of strange shapes & symbols instead of numbers here...

Do you know why I'm getting this wierd stuff instead of numbers?

Thanks for your help anyway!!

JB