Nero3 or K3b on KDE4

[JeepNut]

Hi all,
I'm desperately trying to archive a dual-layer DVD and am having a dickens of a time.
I've burned single layer DVDs with the hardware and don't know why it wouldn't be working for Dual Layer work.
But neither of the mentioned apps has given me a successful result in burning the DL copy. k3b seems quite broken for KDE4, but Nero seems to work nicely for most things. I can create an .iso file easily. But burning seems always to fail and blank DVD+R DL's aren't cheap when you make coaster after coaster while experimenting with options...

System = openSUSE 11.1 with the KDE4.1.3 desktop (which I'm a hair's breadth from abandoning.. it seems almost useless really). I've installed KDE4-k3b and a fresh download of the Nero for Linux trial and since neither are successful, I'm wondering if it isn't mostly a problem with KDE.
The hardware is not weak, ASUS A8N32-SLI Deluxe with AMD Athlon 64 3000+
and 2Gb RAM and a Sony DWD22A 16x Dual Layer DVD+/- RW Recorder...
As I mentioned single layer burning seems to work OK

Any ideas why the dual layer copies would be such an issue?
Thanks for any help!

[beojan]

have you tried both apps on the same machine with a different desktop. Since nero also fails, i doubt it is a problem with KDE, since the desktop really shouldn't affect burning

[Rubberman]

It may be the drive, if the KDE4-k3b version fails. I use K3b on KDE 3.5.4 to burn DL discs all the time and have no problems with it at all, at least at 4x speed (my discs are 4-6x Verbatim). If you are burning faster than that, you might want to slow the burn down. Also, the disc brand makes a lot of difference. I have had nothing but trouble with Memorex, for example - not just on my current system, but on others with different burners as well.