Burn DVD using ISOfile with Copytodvd

I just burned Blood Diamond using a ISO file with Copytodvd and the dvd doesnt play on my dvd player. Need help!

Does the DVD player on your computer?

Hi,

We need way more info than this.

Where did the .ISO come from ?
Did you rip it yourself ?

Is it PAL ? NTSC Movie ?

What media did you use, and what speed did you burn at ?

Provide us a burn log !