Do a google search. Depending on what you want it to do, anywhere from $600.00 to $160,000.00 (and they're called DVD duplicators).
Now if you want to replicate DVDs you're in the half million and up range.
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I'd rather be ignorant than stupid. Ignorance implies a lack of knowledge which is easily correctable through education. Stupidity implies an inability to learn. Therefore; ignorance is temporary, stupidity is forever!