Sorry, I can't reproduce. 

KDE itself comes with no media player for Windows media formats. Do you have Kaffeine? If so, I think you should report this to the Kaffeine developers.

I just noticed that even switching tabs in the launching konq makes it crash. I do understand that you are not responsible for the media not supported, but from an end-user's perspective it's konq crashing, not kaffeine or noatun, whatever part is used in place...

Yes, this is kaffeine causing konqueror to crash.  It will play fine the first time, but click again and it will crash.

Same can be seen here:  http://www.cbc.ca/mondayreport/
Click on a movie, it will play in a new window.  
Close that window, click on another movie.  Konq crashes.

[KCrash handler]
#3  0xb6af17f1 in pthread_mutex_lock () from /lib/tls/libpthread.so.0
#4  0xb7e5ec4f in pthread_mutex_lock () from /lib/tls/libc.so.6
#5  0xb70a5ff1 in _XUnregisterFilter () from /usr/X11R6/lib/libX11.so.6
#6  0xb708f1c8 in XrmEnumerateDatabase () from /usr/X11R6/lib/libX11.so.6
#7  0xb70781aa in XKeysymToString () from /usr/X11R6/lib/libX11.so.6
#8  0xb7931ac9 in KKeyServer::Sym::toString () from /usr/lib/libkdecore.so.4
#9  0xb7931c4f in KKeyServer::Sym::toStringInternal ()
   from /usr/lib/libkdecore.so.4
#10 0xb792e482 in KKey::toStringInternal () from /usr/lib/libkdecore.so.4
#11 0xb792f246 in KKeySequence::toStringInternal ()
   from /usr/lib/libkdecore.so.4
#12 0xb79308b8 in KShortcut::toStringInternal () from /usr/lib/libkdecore.so.4
#13 0xb6e5bd25 in KAction::initPrivate () from /usr/lib/libkdeui.so.4
#14 0xb6e5abdd in KAction::KAction () from /usr/lib/libkdeui.so.4
#15 0xb6e717dc in KToolBarPopupAction::KToolBarPopupAction ()
   from /usr/lib/libkdeui.so.4
#16 0xb68c406e in KonqMainWindow::initActions ()
   from /usr/lib/libkdeinit_konqueror.so
#17 0xb68ad024 in KonqMainWindow::KonqMainWindow ()
   from /usr/lib/libkdeinit_konqueror.so
#18 0xb68b3a26 in KonqMainWindow::slotCreateNewWindow ()
   from /usr/lib/libkdeinit_konqueror.so
#19 0xb68d4d85 in KonqMainWindow::qt_invoke ()
   from /usr/lib/libkdeinit_konqueror.so
#20 0xb73925ac in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#21 0xb7fc3998 in KParts::BrowserExtension::createNewWindow ()
   from /usr/lib/libkparts.so.2
#22 0xb63182ee in EmbedLiveConnect::toString () from /usr/lib/libkhtml.so.4
#23 0xb6319c31 in EmbedLiveConnect::toString () from /usr/lib/libkhtml.so.4
#24 0xb62d8eae in QPtrDict<khtml::CachedObjectClient>::deleteItem ()
   from /usr/lib/libkhtml.so.4
#25 0xb60a8790 in KJS::Object::call () from /usr/lib/libkjs.so.1
#26 0xb6076983 in KJS::timeClip () from /usr/lib/libkjs.so.1
#27 0xb60793e4 in KJS::timeClip () from /usr/lib/libkjs.so.1
#28 0xb607b00a in KJS::timeClip () from /usr/lib/libkjs.so.1
#29 0xb6081a7c in KJS::timeClip () from /usr/lib/libkjs.so.1
#30 0xb607ae1f in KJS::timeClip () from /usr/lib/libkjs.so.1
#31 0xb6080f23 in KJS::timeClip () from /usr/lib/libkjs.so.1
#32 0xb60a3e5c in KJS::DeclaredFunctionImp::execute ()
   from /usr/lib/libkjs.so.1
#33 0xb60a322c in KJS::FunctionImp::call () from /usr/lib/libkjs.so.1
#34 0xb60a8790 in KJS::Object::call () from /usr/lib/libkjs.so.1
#35 0xb6076983 in KJS::timeClip () from /usr/lib/libkjs.so.1
#36 0xb607b00a in KJS::timeClip () from /usr/lib/libkjs.so.1
#37 0xb6081a06 in KJS::timeClip () from /usr/lib/libkjs.so.1
#38 0xb607ae1f in KJS::timeClip () from /usr/lib/libkjs.so.1
#39 0xb6080f23 in KJS::timeClip () from /usr/lib/libkjs.so.1
#40 0xb6098797 in KJS::SourceCode::cleanup () from /usr/lib/libkjs.so.1
#41 0xb60aa72a in KJS::Interpreter::evaluate () from /usr/lib/libkjs.so.1
#42 0xb632706f in EmbedLiveConnect::toString () from /usr/lib/libkhtml.so.4
#43 0xb61a741e in KHTMLPart::executeScript () from /usr/lib/libkhtml.so.4
#44 0xb61a6564 in KHTMLPart::crossFrameExecuteScript ()
   from /usr/lib/libkhtml.so.4
#45 0xb61b3a29 in KHTMLPart::urlSelected () from /usr/lib/libkhtml.so.4
#46 0xb6219671 in DOM::removeForbidden () from /usr/lib/libkhtml.so.4
#47 0xb61edcbf in QPtrDict<QWidget>::deleteItem () from /usr/lib/libkhtml.so.4
#48 0xb61eda42 in QPtrDict<QWidget>::deleteItem () from /usr/lib/libkhtml.so.4
#49 0xb6192f43 in KHTMLView::dispatchMouseEvent () from /usr/lib/libkhtml.so.4
#50 0xb618cff1 in KHTMLView::viewportMouseReleaseEvent ()
   from /usr/lib/libkhtml.so.4
#51 0xb74a7849 in QScrollView::eventFilter () from /usr/lib/libqt-mt.so.3
#52 0xb618eae2 in KHTMLView::eventFilter () from /usr/lib/libkhtml.so.4
#53 0xb738fede in QObject::activate_filters () from /usr/lib/libqt-mt.so.3
#54 0xb738fe0c in QObject::event () from /usr/lib/libqt-mt.so.3
#55 0xb73c86af in QWidget::event () from /usr/lib/libqt-mt.so.3
#56 0xb7335bff in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#57 0xb73352f4 in QApplication::notify () from /usr/lib/libqt-mt.so.3
#58 0xb78b3a35 in KApplication::notify () from /usr/lib/libkdecore.so.4
#59 0xb72ca650 in QETWidget::translateMouseEvent ()
   from /usr/lib/libqt-mt.so.3
#60 0xb72c82de in QApplication::x11ProcessEvent () from /usr/lib/libqt-mt.so.3
#61 0xb72df1c4 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#62 0xb7347f58 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#63 0xb7347e08 in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#64 0xb7335e51 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#65 0xb68751ec in kdemain () from /usr/lib/libkdeinit_konqueror.so
#66 0xb6921786 in kdeinitmain () from /usr/lib/kde3/konqueror.so
#67 0x0804cbd2 in ?? ()
#68 0x00000002 in ?? ()

For those watching this bug and not wanting to wait for a fixed kaffeine: try KMPlayer Kpart, it rocks ;)

similar problems on CNN
some videos work fine some not
javascript:cnnVideo('play','/video/us/2005/08/28/huffines.katrina.update.9am.cnn');

IMHO subsequent calls to videos are crashing, the first one per konqueror session seems to work usually. Hmm not very precise.

*** This bug has been marked as a duplicate of 109498 ***