I bought those type of pirated dvd in Singapore only, in those
type of small stalls which they set up today to sell and than
disappear and only come backa few weeks later.
1 dvd cost $8 and 3 cost $20.
So far I bought 6 of them.
The quality is still ok except than when I buy horror movies, there
are always those dark scences whereby the ghost comes out to scare
the person.
I realise that in these dark scences, I can;t see the ghost. All I
see is a dark screen 
Anyone experience such a thing?
But for other scences I can see clearly