Im using a NEC 6500A burner, I tried starting k3b from a terminal window and I seem to be getting alot of access errors toward the end:
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg0for reading
k3b: could not open device /dev/sg0 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg1for reading
k3b: could not open device /dev/sg1 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg2for reading
k3b: could not open device /dev/sg2 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg3for reading
k3b: could not open device /dev/sg3 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg4for reading
k3b: could not open device /dev/sg4 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg5for reading
k3b: could not open device /dev/sg5 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg6for reading
k3b: could not open device /dev/sg6 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg7for reading
k3b: could not open device /dev/sg7 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg8for reading
k3b: could not open device /dev/sg8 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg9for reading
k3b: could not open device /dev/sg9 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg10for reading
k3b: could not open device /dev/sg10 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg11for reading
k3b: could not open device /dev/sg11 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg12for reading
k3b: could not open device /dev/sg12 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg13for reading
k3b: could not open device /dev/sg13 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg14for reading
k3b: could not open device /dev/sg14 (Permission denied)
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/sg15for reading
k3b: could not open device /dev/sg15 (Permission denied)
k3b: (K3bDeviceManager) scanning fstab: /dev/hdc6
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/hdc6for reading
k3b: could not open device /dev/hdc6 (Permission denied)
k3b: (K3bDeviceManager) scanning fstab: /dev/hdc2
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/hdc2for reading
k3b: could not open device /dev/hdc2 (Permission denied)
k3b: (K3bDeviceManager) scanning fstab: /dev/hdc5
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/hdc5for reading
k3b: could not open device /dev/hdc5 (Permission denied)
k3b: (K3bDeviceManager) scanning fstab: devpts
k3b: Could not resolve devpts
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device devptsfor reading
k3b: could not open device devpts (No such file or directory)
k3b: (K3bDeviceManager) scanning fstab: proc
k3b: Could not resolve proc
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device procfor reading
k3b: could not open device proc (No such file or directory)
k3b: (K3bDeviceManager) scanning fstab: usbfs
k3b: Could not resolve usbfs
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device usbfsfor reading
k3b: could not open device usbfs (No such file or directory)
k3b: (K3bDeviceManager) scanning fstab: sysfs
k3b: Could not resolve sysfs
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device sysfsfor reading
k3b: could not open device sysfs (No such file or directory)
k3b: (K3bDeviceManager) scanning fstab: /dev/dvdrecorder
k3b: (K3bDeviceManager) found device for /dev/dvdrecorder: /dev/hda
k3b: /dev/hda resolved to /dev/hda
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: /dev/hda is block device (0)
k3b: /dev/hda seems to be cdrom
k3b: (K3bDeviceManager) dev /dev/hda already found
k3b: (K3bDeviceManager) found config entry for devicetype: _NEC DVD+-RW ND-6500A
k3b: (K3bDeviceManager) scanning fstab: /dev/hdc6
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/hdc6for reading
k3b: could not open device /dev/hdc6 (Permission denied)
k3b: (K3bDeviceManager) scanning fstab: /dev/hdc2
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/hdc2for reading
k3b: could not open device /dev/hdc2 (Permission denied)
k3b: (K3bDeviceManager) scanning fstab: /dev/hdc5
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device /dev/hdc5for reading
k3b: could not open device /dev/hdc5 (Permission denied)
k3b: (K3bDeviceManager) scanning fstab: devpts
k3b: Could not resolve devpts
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device devptsfor reading
k3b: could not open device devpts (No such file or directory)
k3b: (K3bDeviceManager) scanning fstab: proc
k3b: Could not resolve proc
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device procfor reading
k3b: could not open device proc (No such file or directory)
k3b: (K3bDeviceManager) scanning fstab: usbfs
k3b: Could not resolve usbfs
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device usbfsfor reading
k3b: could not open device usbfs (No such file or directory)
k3b: (K3bDeviceManager) scanning fstab: sysfs
k3b: Could not resolve sysfs
k3b: (K3bDevice:

evice) resmgr open: -1
k3b: (K3bDevice:

evice) Error: could not open device sysfsfor reading
k3b: could not open device sysfs (No such file or directory)