Sorry to hear that you are still having troubles. Of course, it could turn out that the camera has a flaw but my hunch is that it is the card. You'll need to find out, of course. One potential issue is that there are a huge number of counterfeit cards on the market and it's important to make sure you have an authentic product of good quality. The fakes cause lots of problems and look just like the
real McCoy. Even legitimate retailers have discovered to their dismay that the cards they were selling were fakes. Personally, I have had excellent results from the SanDisk Ultra microSDHC 32 GB class 10 and own three of them, purchased from Amazon where you can trust what you are getting. It will come in the proper packaging, which is important when shopping for a card. I use one in my DR32 with good results. In your neck of the woods you can get one from
Amazon.com for £19.07
Here is
good link about fake SanDisk cards.
This link from the above mentioned article is useful also.