For comparison's sake:

Original:

VADER: What is thy bidding, my master?
EMPEROR: There is a great disturbance in the Force.
VADER: I have felt it.
EMPEROR: We have a new enemy -- Luke Skywalker.
VADER: Yes, my master.
EMPEROR: He could destroy us.
VADER: He's just a boy. Obi-Wan can no longer help him.
EMPEROR: The Force is strong with him. The son of Skywalker must not become a Jedi.
VADER: If he could be turned, he would become a powerful ally.
EMPEROR: Yes. Yes. He would be a great asset. Can it be done?
VADER: He will join us or die, my master.

2004 DVD:

VADER: What is thy bidding, my master?
EMPEROR: There is a great disturbance in the Force.
VADER: I have felt it.
EMPEROR: We have a new enemy, the young Rebel who destroyed the Death Star. I have no doubt this boy is the offspring of Anakin Skywalker.
VADER: How is that possible?
EMPEROR: Search your feelings, Lord Vader. You will know it to be true. He could destroy us.
VADER: He's just a boy. Obi-Wan can no longer help him.
EMPEROR: The Force is strong with him. The son of Skywalker must not become a Jedi.
VADER: If he could be turned, he will become a powerful ally.
EMPEROR: Yes. He would be a great asset. Can it be done?
VADER: He will join us or die, my master.