Patuba

Alright, I am a complete newbie burning dual-layer dvds. I am having problems with the layer break. I have created an ISO file with DVD Decrypter but do not know the next steps to burning it. I have read about people creating a DVD MDS file but I do not know what that is or if I need to do it? Can someone tell me or point me to a guide of burning a DVD iso made with DVD Decrypter for dual layer without having layer break problems? Thank you,