Page 1 of Rotel 985 and Yamaha S-700

I may buy one of these 2 DVD players.
The saler says that the Rotel is already ok for zone 1 and 2 because Rotel made it like that. May I trust him ?

Is there a way to hack those players ?

What about macrovision ? Is it something hackable by remote or only by chip ? This question is a general purpose. I am interested by an answer for these 2 ones and in a general way.

Regards.

P.S. Does anyone have an opinion on these players ?