Not Burning DL with 3500 :-(

Well i can’t write DL+R DVDs with my 3500 !

It says " Could not perform start of Disc-at-once "

Do i need to change the firmware?

Plz pm me !

thanx !

Use only Verbatims or you’ll burn your money…
And never use crappy Nero! ImgBurn or WinonCD8.

a friend has 3520,same nero,same dvd(don’t remember the name) and writes just fine!
why is that???