Burning large file (bigger than 6GB) with 8.5 GB DL +R media

Hello,
I tried to burn twice with k3b in Linux with a file which is
bigger than 6GB:
I get:
 8.5 GB DL +R media and it failed.

My dvd writer **does** support DL +R
It is Optiarc DVD RW AD-7170A; the k3b log says:
Profiles: DVD-ROM, ......, DVD+RW, DVD+R, DVD+R Dual Layer,...

I get an I/O error immediately when starting to burn.

The log says this exactly thus:
...
...
growisofs command:
-----------------------
k3b error when burning:
/usr/bin/growisofs -Z /dev/sr0=/dev/fd/0 -use-the-force-luke=notray
-use-the-force-luke=tty -use-the-force-luke=tracksize:3289486
-dvd-compat -speed=2.4 -use-the-force-luke=bufsize:4m
Fatal Error at startup: input/output error.
...
...

I am using k3b-1.0.5-9.fc11.x86_64
My question is:
Does this k3b version (which is quite recent) support burning 8.5 GB
DL +R media?

Any ideas from those who tried it successfully will be appreciated

Regards,
Mark

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