Really shouldn't matter because your DVD player will play both.
Only when recording, do you need to worry about the DVD format.
If you bought something on Ebay and the quality was/is poor, you knew that risk existed prior to purchasing especially when you got that 'great bootleg price' vs. the $59.95 the reputable dealers charge for Narcissus.
So, caveat emptor...
If you buy from a reputable dealer, in this case...PM, you'll only get high quality products!
But, you knew all this, right?