A massive series of raids on Europe's biggest "piracy black spot" on has led to the seizure of millions of dollars worth of counterfeited goods, including 54,000 illegal CDs.

The raids, by Czech customs and police officers during November and December, targeted two of the 50 open-air markets along the almost 700-mile Czech border with Germany and Austria.

Some ?3.5 million ($4.7 million) in pirated CDs and other illegal items were nabbed at the 'Dragon Market' in the Plzen area. It is described as the region's largest marketplace of Vietnamese traders.

Another raid took place at the West Bohemian market in Cheb, where 250 customs officers grabbed fake copyrighted goods at nearly all 130 market stalls.

That part of the Czech border is notorious for being "the largest concentration of pirate trading in Europe," says industry trade group IFPI, because of the "piracy tourists" from neighboring Austria and Germany.

This sees thousands of shoppers from those two countries visiting the Czech markets daily to purchase pirated and counterfeit products.

"These raids are a good first step -- we would like to see the Czech authorities go much further," said IFPI chairman/CEO John Kennedy. "Pirate stalls need to be shut down indefinitely, stall owners should be prosecuted, and the Czech authorities should make those who exploit these illegal markets liable."