Application that crashed: k3b
Version of the application: 1.68.0
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-15-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
from one moment to another, the program will erase the ruling after a cd, then did not open this program

 -- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7888920 (LWP 5937))]

Thread 3 (Thread 0xb4cfeb70 (LWP 5964)):
#0  0x00bfe422 in __kernel_vsyscall ()
#1  0x0085d142 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x02ffc7e4 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0x0236981e in ?? () from /usr/lib/libQtCore.so.4
#4  0x023699c0 in QThread::sleep(unsigned long) () from /usr/lib/libQtCore.so.4
#5  0x00cba2e9 in K3b::MediaCache::PollThread::run() () from /usr/lib/libk3b.so.6
#6  0x02369e32 in ?? () from /usr/lib/libQtCore.so.4
#7  0x0085880e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x02fef7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xb44fdb70 (LWP 5965)):
[KCrash Handler]
#6  0x00314287 in K3b::Device::from4Byte(unsigned char*) () from /usr/lib/libk3bdevice.so.6
#7  0x002f7550 in K3b::Device::Device::determineSupportedWriteSpeeds() const () from /usr/lib/libk3bdevice.so.6
#8  0x00cb8e1c in K3b::Medium::update() () from /usr/lib/libk3b.so.6
#9  0x00cba25a in K3b::MediaCache::PollThread::run() () from /usr/lib/libk3b.so.6
#10 0x02369e32 in ?? () from /usr/lib/libQtCore.so.4
#11 0x0085880e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0x02fef7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7888920 (LWP 5937)):
#0  0x00bfe422 in __kernel_vsyscall ()
#1  0x02fe1ba6 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0x00c06d80 in ?? () from /usr/lib/libxcb.so.1
#3  0x00c072eb in ?? () from /usr/lib/libxcb.so.1
#4  0x00c07687 in xcb_writev () from /usr/lib/libxcb.so.1
#5  0x009652e9 in _XSend () from /usr/lib/libX11.so.6
#6  0x00951a8d in ?? () from /usr/lib/libX11.so.6
#7  0x00950ed4 in ?? () from /usr/lib/libX11.so.6
#8  0x00951c5a in XPutImage () from /usr/lib/libX11.so.6
#9  0x0553e101 in QX11PixmapData::fromImage(QImage const&, QFlags<Qt::ImageConversionFlag>) () from /usr/lib/libQtGui.so.4
#10 0x0552a597 in QPixmap::fromImage(QImage const&, QFlags<Qt::ImageConversionFlag>) () from /usr/lib/libQtGui.so.4
#11 0x0552d5d4 in QPixmap::load(QString const&, char const*, QFlags<Qt::ImageConversionFlag>) () from /usr/lib/libQtGui.so.4
#12 0x0552dd85 in QPixmap::QPixmap(QString const&, char const*, QFlags<Qt::ImageConversionFlag>) () from /usr/lib/libQtGui.so.4
#13 0x0819ce35 in _start ()

Reported using DrKonqi