This is a very big problem. Out there, people (mostly chinese) produce imitations of memory cards, memory sticks The same stands for USB stick dongles, MP3 players with 4/8gb etc

Don't be foolish thinking you got a "CHEAP 4GB / 8GB / 16GB / 32GB" deal, in fact you were paying for a "VERY EXPENSIVE 1GB / 2GB" hacked sticks. The sellers are laughing their way to the bank!
Kinston doesn't always mean kingston and transcend doesn't always mean transcend.

You should be very careful what you are buying and from whom you buy.