Hi, looked around and saw some similar ish threads but not the same, forgive me if this has been asked before.
I got a Panasonic HX-WA2 and purchased a 64GB SANDISK SDXC card for it. Recorded some film and photos - all good.
However, when I take the card out it won’t read in any other card readers. I have a macbook pro and have aslo tried on a number of (at least 5) Windows 7 machines - all say it needs formatting (except the mac which just cant read it). I have one other SD card that they can all read, though this is a very small one in comparison, 2GB or something.
I am not sure if the Macbook pro (2012 model) reader would support the card, but I know that at least one of the Win 7 card readers said it can read cards this size and type.
Also, when I put it back in the camera - it sees all the stuff on there, so I know the data is on the card and can be read.
If I connect the camera via USB to read the card it again says it needs formatting.