Duolaimi, next to Xinhua Bookstore in Xinjiekou, is full of goods, and there is basically no piracy.

There are also several video stores on Hankou West Road (Ninghai Road) next to Nanjing Normal University. Go and have a look. Basically, those selling 10 and 15 are pirated, while others are basically genuine.

In fact, genuine piracy is easy to identify, you can see it by the quality of printing, or by the price. If it is too cheap, there must be something wrong.