I use 8, 16 or 32GB card in Q7, they all work fine.
Originally posted by photoptimist I was immunized against photolossophobia by living with film for a couple of decades. Backups were impossible and every image from a trip was subject to the whims of a failed camera, aggressive airport X-ray, corrupted film lab chemistry, loss, or theft. Despite the risks, I never lost an image.
Lucky you, photoptimist!
In my case, the first digital camera I owned (Olympus Camedia something) suddenly decided to go crazy. The very first day's worth of pictures of my second child, then-newborn, were all lost! Memory card technology was still in its infancy, SD card didn't exist (OK it might have existed when this happened, but not when I bought the camera), and my camera used SmartMedia. If you don't remember, they looked like thinner but longer SD cards, the memory card adapter had the exact shape of a 3.5" floppy disk, you would insert the card into the adapter and then stick the adapter into the 3.5" floppy drive to read the data out from PC!
Later I have found that SmartMedia is notorious for corrupting its own file system.
SmartMedia - Wikipedia
Because of this, I and my wife became digital photolossophobic for quite some time and went back to film P&S for a year or two for kids' pictures, though we continued to use that camera for things of non-critical importance.
Fast forward 7 or 8 years, my daughter asked for her babyhood pictures for a school project. "Um, important pictures like that are only PRINTED on PAPER (what a concept), and most of those prints are at your grandparents' house in Japan, but let's see what we have on my PC." "Hey dad, you have more pictures of big sis than mine!" "Um, yes, that's because the digital camera used to work before you were born, but it happened to fail right after that, since then we mostly used film camera for some time", and as I spoke I was feeling as if I'm making some really lame excuse.
Fortunately there was at least one good picture that she thought was OK , but needless to say that I made sure to visit my parent's house on summer (or was that winter?) vacation to dig out old photo albums.