Application that crashed: k3b
Version of the application: 1.68.0
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-18-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
crashed on 5th of 6 copies.  was not at the computer to see what stage it had reached when it crashed.

 -- Backtrace:
Application: K3b (k3b), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f6e9a843750 (LWP 9333))]

Thread 3 (Thread 0x7f6e81d45910 (LWP 9356)):
#0  0x00007f6e9180f82d in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f6e9483eed5 in ?? () from /usr/lib/libQtCore.so.4
#2  0x00007f6e9483f086 in QThread::sleep(unsigned long) () from /usr/lib/libQtCore.so.4
#3  0x00007f6e9a102625 in K3b::MediaCache::PollThread::run() () from /usr/lib/libk3b.so.6
#4  0x00007f6e9483f445 in ?? () from /usr/lib/libQtCore.so.4
#5  0x00007f6e9180aa04 in start_thread () from /lib/libpthread.so.0
#6  0x00007f6e931f280d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f6e81544910 (LWP 10229)):
[KCrash Handler]
#5  0x00007f6e9a4473f1 in K3b::Device::Track::firstSector() const () from /usr/lib/libk3bdevice.so.6
#6  0x00007f6e9a1006dc in K3b::Medium::analyseContent() () from /usr/lib/libk3b.so.6
#7  0x00007f6e9a101210 in K3b::Medium::update() () from /usr/lib/libk3b.so.6
#8  0x00007f6e9a10259c in K3b::MediaCache::PollThread::run() () from /usr/lib/libk3b.so.6
#9  0x00007f6e9483f445 in ?? () from /usr/lib/libQtCore.so.4
#10 0x00007f6e9180aa04 in start_thread () from /lib/libpthread.so.0
#11 0x00007f6e931f280d in clone () from /lib/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6e9a843750 (LWP 9333)):
#0  0x00007f6e9180f5a9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f6e9483ec93 in ?? () from /usr/lib/libQtCore.so.4
#2  0x00007f6e9483a865 in QMutex::lock() () from /usr/lib/libQtCore.so.4
#3  0x00007f6e9a1027d1 in K3b::MediaCache::resetDevice(K3b::Device::Device*) () from /usr/lib/libk3b.so.6
#4  0x00007f6e9a0c611f in K3b::eject(K3b::Device::Device*) () from /usr/lib/libk3b.so.6
#5  0x00007f6e9a145447 in K3b::DvdCopyJob::slotWriterFinished(bool) () from /usr/lib/libk3b.so.6
#6  0x00007f6e9a14705d in K3b::DvdCopyJob::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libk3b.so.6
#7  0x00007f6e9493addc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#8  0x00007f6e9a0d2fa2 in K3b::Job::finished(bool) () from /usr/lib/libk3b.so.6
#9  0x00007f6e9a0d3f74 in K3b::Job::jobFinished(bool) () from /usr/lib/libk3b.so.6
#10 0x00007f6e9a128bd2 in ?? () from /usr/lib/libk3b.so.6
#11 0x00007f6e9a12b726 in ?? () from /usr/lib/libk3b.so.6
#12 0x00007f6e949350f9 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#13 0x00007f6e93dcdefc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#14 0x00007f6e93dd51ce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#15 0x00007f6e95795e56 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#16 0x00007f6e94925c2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#17 0x00007f6e9492680a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#18 0x00007f6e9494e533 in ?? () from /usr/lib/libQtCore.so.4
#19 0x00007f6e8f9e3bce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#20 0x00007f6e8f9e7598 in ?? () from /lib/libglib-2.0.so.0
#21 0x00007f6e8f9e76c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#22 0x00007f6e9494e1a6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#23 0x00007f6e93e624be in ?? () from /usr/lib/libQtGui.so.4
#24 0x00007f6e94924532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#25 0x00007f6e94924904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#26 0x00007f6e942489de in QDialog::exec() () from /usr/lib/libQtGui.so.4
#27 0x00000000005438f8 in _start ()

Reported using DrKonqi