Help with custon PS2 disc

hey guys i downloaded a ps2 game and its an ISO image what type of dvd should i burn it to so that it can work in my ps2

normal DVD 4.7GB capacity which is vaialable in market Rs 30 will work fine, i burn my games on DVD-R. I never try DVD RW or Dual layer DVD 8.5GB capacity so can't say that they will work. I use Power Iso to burn dvds

thnx foe the info man