what are the charactristics of second generation DVDs?
By second generation do you mean a copy of a copy? If so, there is no difference between the content.
Needs more clarification as to the meaning of second generation and what it referred to DVD??
I think maybe he's talking about revision or DVD version numbers, but not really sure
Here's something http://geekscomputer.blogspot.com/2011/01/whats-difference-between-first-second.html