The problem of fake memory sticks has been already around for a while. Now Sony started to act and is suing several companies in Japan for selling fake memory sticks online.
Fake memory sticks are also offered on eBay in the United States. So beware, when purchasing low priced sticks. The differences are hard to tell. There are not only fake Sony branded sticks, but also fake Sandisk memory sticks out there.
The fake Memory Sticks are mostly made in China and Taiwan. The pirated copies are usually priced half.