Cannot burn DVD-R

From: Novello (novello_at_notRightAddress.it)
Date: 09/20/05 

Date: Tue, 20 Sep 2005 19:29:13 +0000

Hello,

I cant burn DVD-R.
I tried with +R and it works fine.

Can you help me?

My system:

Slackware10current kernel 2.6.1
Cdrecord-Clone 2.01
dvd+rw-tools
k3b

I also tried NEROlinux but it failed.

I have installed cdrecord-ProDVD and its key ad it does not work too!

Any ways out? :)

thanks