One of my friend purchased some kannada movies DVD from aroad side vendor who sells all pirated copies of these movies. After bringing them to home, 2 of te dvds did not open at all and the other two had very bad picture quality. He did not bother to go back to the seller because it would be a waste of time and money to go there and who knows if the seller will be there or not. And what is the guarantee that he will replace accept the fault.
Better to buy originals at bigbazar or so. Moserbaer sells the CDs and movie DVDs at very low prices.