I hope someone can help.

Card make and model: kingston SDV10/8GB

I get this same image on my pies but if I reboot them they simply won't start anymore. If I then remove power and read the SD card in a windows 8 laptop it is shown as a 2TB removable card in easeus partition master with a master boot record signature of FFFFFFFF so that is obviously broken.

Now if I try and have the software rebuild the MBR I get this message: "There are some errors occurred while writing sector on disk".
If I try to flash a new image onto it(with win32diskimager) I get the message that the disk is write protected.

Putting the card into a USB reader shows it as being 7.48GB in size(this is correct) and having a MBR signature of 55555555.
Nothing else changes.(still cannot write to it)


These have been running correct for one full week but after the last weekend the issues started.
This has so far happened to two cards on monday, 1 more on wednesday and now another one on friday so I would really like to know what is going on.
I already contacted kingston and they basically said that because I used the SD card in a raspberry they wouldn't be able to help me.

Does anyone have any idea what is going on/how to solve this?

Also if this is just the wrong model card or something: what do you reccomend?