I believe I am having a problem with my SD Card. I am using it in a Sony RX10- Mark 4 and until today did not have any problems. Today I noticed that when trying to take 3 frames/second for several seconds I would get the error on my camera screen saying that "Writing to the memory card was not completed correctly. Recover data?" When I clicked enter another message came up on my camera screen saying "Execute? This may damage data that was added or edited on another device."

I clicked through those messages selecting for it to do what it needed to do. Then I found that I could view on my camera screen most, but not all of the quick succession pics. Then when I put the SD Card into my laptop I got an error message saying "We found errors on this drive. To prevent data loss, repair this drive now. So I selected to have the computer do that repair. It indicates that it is scanning and repairing the drive in the pop up but it also says Error Checking USB Drive. I am unable to close that popup without opening up Task Manager and selecting to end that task (COM Surrogate). When I do that then the USB Drive opens up and I can view the photos. This same thing happened when I inserted the SD Card into my work computer after taking some more photos.

So as I said at the beginning I think I probably need a new SD Card. Some of the pictures show up as mostly being green with a bit of the actual image at the top of the photo. I got this SD Card new when I bought the camera new last November. It is a Sony SD Card- SDXC 64 GB. It also has an E on the card. I do not know what that indicates and it has a Read speed of 270 MB/s and a Write speed of 70 MB/s.

Can anyone recommend a better SD Card that hopefully will last longer and perhaps even have faster read and write speeds? I am not a professional photographer but would like a realiable SD Card. I do not really think I need one with more storage because I typically delete the photos after I transfer them to my laptop but might get a 128 GB card anyway.

Thanks for any help you can offer, Brian