Ubuntu :: Suddenly PC Cannot Burn CDs Or DVDs

Here is my problem using K3B when writing Multi-session Project:

"Writing CD-R
Using Wodim 1.1.10.
Starting TAO to writing at 48x speed
performing Optimum Power calibratpo;;p;9;n
starting disk write
mkisofs crashed
cdrecord has no permission to open the device
You may use K3bsetup to solve this problem"

I have the same problem with the other cd-burner programs, such as:
Brasero Disk Burner, Gnome Baker CD/DVD Writer, xfBurn, and CD/DVD Creator.
Why all the programs are malfunctioning since yesterday? I un-installed some of them, re-started the pc, but the problem continues...

Here is the "Debugging Ouput" for the K3B:
Devices: TSSTcorp CDDVDW SH-S223C SB03 (/dev/sr0, CD-R, CD-RW, CD-ROM, DVD-ROM, DVD-R, DVD-RW, DVD-R DL, DVD+R, DVD+RW, DVD+R DL) [DVD-ROM, DVD-R Sequential, DVD-R Dual Layer Sequential, DVD-R Dual Layer Jump, DVD-RAM, DVD-RW Restricted Overwrite, DVD-RW Sequential, DVD+RW, DVD+R, DVD+R Dual Layer, CD-ROM, CD-R, CD-RW] [SAO, TAO, RAW, SAO/R96P, SAO/R96R, RAW/R16, RAW/R96P, RAW/R96R, Restricted Overwrite, Layer Jump] [%7]

K3b::IsoImager
mkisofs print size result: 110167 (225622016 bytes)
System
K3b Verspo;;p;9;n: 1.91.0
KDE Verspo;;p;9;n: 4.4.5 (KDE 4.4.5)
QT Verspo;;p;9;n: 4.6.2
Kernel: 2.6.32-30-generic
Used verspo;;p;9;ns .....