DVD Writer not writing beyond 4.7 GB

[ejvaldes]

Hello,
I cannot write large DVDs, only up to 4.7 GB. I am using an LD GH22NP20 and I upgrade its firmware. I was writing before OK and in the last thre days I am having this trouble.
What Can I do?

 

[runswindows95]

What type of discs are you using? Only dual-layer DVD's will handle more than 4.7GB.