Update to the previous post: I have been able to reproduce both signals now. This is how it goes: 1.- Open k9copy and fire up the settings. Change the size from 4400M to 8000M (as I do not want to shrink the DVD). Press OK. Load the DVD. Press Copy DVD. The result is the messages (in a terminal) First video packet in sequence starting at 4110 misses PTS or DTS, flags=1 First video packet in sequence starting at 2062 misses PTS or DTS, flags=1 and k9copy crashes after 2-4 minutes when processing about 4% of the second track (this time causes signal 11 SIGSEGV) (See the backtrace in previous post) Now, if I do 2.- Open k9copy. Load the DVD. Press Copy DVD (the size has already been set to 8000M). The application completes the processing of track 2 (the main one) but still sends the two messages about the video packets to the terminal and crashes (this time causing the SIGABRT 6 signal) when updating the VOB files (about 17 minutes later). I can play the resulting dvd folder structure using vlc but it seems that there is some problems with the audio though. I have not checked whether or not I can play the extras in the DVD. I am attaching the backtrace for this signal and below you can find the output I can see in the terminal when k9copy crashes This is what I see: First video packet in sequence starting at 4110 misses PTS or DTS, flags=1 First video packet in sequence starting at 2062 misses PTS or DTS, flags=1 *** glibc detected *** k9copy: free(): invalid pointer: 0x00007f976bbe1010 *** ======= Backtrace: ========= /lib/libc.so.6[0x7f976fdfa08a] /lib/libc.so.6(cfree+0x8c)[0x7f976fdfdc1c] k9copy[0x48d129] k9copy[0x4aef1f] k9copy[0x433d38] k9copy[0x464049] /usr/lib/libqt-mt.so.3(_ZN7QObject15activate_signalEP15QConnectionListP8QUObject+0x12a)[0x7f97739e9fd0] /usr/lib/libqt-mt.so.3(_ZN7QObject15activate_signalEi+0x174)[0x7f97739eab4e] /usr/lib/libkdeui.so.4(_ZN7KAction9qt_invokeEiP8QUObject+0x79)[0x7f9775a8d9c9] /usr/lib/libqt-mt.so.3(_ZN7QObject15activate_signalEP15QConnectionListP8QUObject+0x12a)[0x7f97739e9fd0] /usr/lib/libkdeui.so.4(_ZN14KToolBarButton13buttonClickedEiN2Qt11ButtonStateE+0xc7)[0x7f97759a62b7] /usr/lib/libkdeui.so.4(_ZN14KToolBarButton17mouseReleaseEventEP11QMouseEvent+0xab)[0x7f97759a655b] /usr/lib/libqt-mt.so.3(_ZN7QWidget5eventEP6QEvent+0x13c)[0x7f9773a1e3ca] /usr/lib/libkdeui.so.4(_ZN14KToolBarButton5eventEP6QEvent+0x16)[0x7f97759dd036] /usr/lib/libqt-mt.so.3(_ZN12QApplication14internalNotifyEP7QObjectP6QEvent+0x25e)[0x7f977398233a] /usr/lib/libqt-mt.so.3(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x5a2)[0x7f9773984410] /usr/lib/libkdecore.so.4(_ZN12KApplication6notifyEP7QObjectP6QEvent+0x19d)[0x7f97750b840d] /usr/lib/libqt-mt.so.3(_ZN12QApplication20sendSpontaneousEventEP7QObjectP6QEvent+0x5e)[0x7f9773913280] /usr/lib/libqt-mt.so.3(_ZN9QETWidget19translateMouseEventEPK7_XEvent+0x117c)[0x7f9773911e94] /usr/lib/libqt-mt.so.3(_ZN12QApplication15x11ProcessEventEP7_XEvent+0xbe2)[0x7f9773910060] /usr/lib/libqt-mt.so.3(_ZN10QEventLoop13processEventsEj+0x110)[0x7f9773927106] /usr/lib/libqt-mt.so.3(_ZN10QEventLoop9enterLoopEv+0x73)[0x7f977399c5bf] /usr/lib/libqt-mt.so.3(_ZN10QEventLoop4execEv+0x2f)[0x7f977399c2ab] /usr/lib/libqt-mt.so.3(_ZN12QApplication4execEv+0x22)[0x7f9773983e00] k9copy[0x44f3ad] /lib/libc.so.6(__libc_start_main+0xf4)[0x7f976fda41c4] k9copy(_ZN11KMdiMainFrm19switchToTabPageModeEv+0xc9)[0x4296a9] ======= Memory map: ======== 00400000-00535000 r-xp 00000000 08:05 488121 /usr/bin/k9copy 00734000-00749000 rw-p 00134000 08:05 488121 /usr/bin/k9copy 00749000-02339000 rw-p 00749000 00:00 0 [heap] 4072d000-4072e000 ---p 4072d000 00:00 0 4072e000-40f2e000 rw-p 4072e000 00:00 0 41a36000-41a37000 ---p 41a36000 00:00 0 41a37000-42237000 rw-p 41a37000 00:00 0 42237000-42238000 ---p 42237000 00:00 0 42238000-42a38000 rw-p 42238000 00:00 0 7f9764000000-7f976522a000 rw-p 7f9764000000 00:00 0 7f976522a000-7f9768000000 ---p 7f976522a000 00:00 0 7f976bbe1000-7f976c7e3000 rw-p 7f976bbe1000 00:00 0 7f976c90e000-7f976c989000 r--p 00000000 08:05 617894 /usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-Oblique.ttf 7f976c989000-7f976ca57000 r--s 00000000 08:05 414602 /var/tmp/kdecache-odracir/ksycoca 7f976ca57000-7f976ca5f000 r-xp 00000000 08:05 490065 /usr/lib/libdvdcss.so.2.0.8 7f976ca5f000-7f976cc5f000 ---p 00008000 08:05 490065 /usr/lib/libdvdcss.so.2.0.8 7f976cc5f000-7f976cc60000 rw-p 00008000 08:05 490065 /usr/lib/libdvdcss.so.2.0.8 7f976cc60000-7f976cc6a000 r-xp 00000000 08:05 227672 /lib/libnss_files-2.7.so 7f976cc6a000-7f976ce6a000 ---p 0000a000 08:05 227672 /lib/libnss_files-2.7.so 7f976ce6a000-7f976ce6c000 rw-p 0000a000 08:05 227672 /lib/libnss_files-2.7.so 7f976ce6c000-7f976ce76000 r-xp 00000000 08:05 227682 /lib/libnss_nis-2.7.so 7f976ce76000-7f976d075000 ---p 0000a000 08:05 227682 /lib/libnss_nis-2.7.so 7f976d075000-7f976d077000 rw-p 00009000 08:05 227682 /lib/libnss_nis-2.7.so 7f976d077000-7f976d08d000 r-xp 00000000 08:05 227666 /lib/libnsl-2.7.so 7f976d08d000-7f976d28c000 ---p 00016000 08:05 227666 /lib/libnsl-2.7.so 7f976d28c000-7f976d28e000 rw-p 00015000 08:05 227666 /lib/libnsl-2.7.so 7f976d28e000-7f976d290000 rw-p 7f976d28e000 00:00 0 7f976d290000-7f976d298000 r-xp 00000000 08:05 227668 /lib/libnss_compat-2.7.so 7f976d298000-7f976d497000 ---p 00008000 08:05 227668 /lib/libnss_compat-2.7.so 7f976d497000-7f976d499000 rw-p 00007000 08:05 227668 /lib/libnss_compat-2.7.so 7f976d4b0000-7f976dddc000 rw-p 7f976d4b0000 00:00 0 7f976dddc000-7f976de63000 r--p 00000000 08:05 617861 /usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-Bold.ttf 7f976de63000-7f976de72000 r-xp 00000000 08:05 556039 /usr/lib/qt3/plugins/inputmethods/libqxim.so 7f976de72000-7f976e072000 ---p 0000f000 08:05 556039 /usr/lib/qt3/plugins/inputmethods/libqxim.so 7f976e072000-7f976e073000 rw-p 0000f000 08:05 556039 /usr/lib/qt3/plugins/inputmethods/libqxim.so 7f976e073000-7f976e09a000 r-xp 00000000 08:05 556038 /usr/lib/qt3/plugins/inputmethods/libqsimple.so 7f976e09a000-7f976e29a000 ---p 00027000 08:05 556038 /usr/lib/qt3/plugins/inputmethods/libqsimple.so 7f976e29a000-7f976e29b000 rw-p 00027000 08:05 556038 /usr/lib/qt3/plugins/inputmethods/libqsimple.so 7f976e29b000-7f976e2a0000 r-xp 00000000 08:05 556037 /usr/lib/qt3/plugins/inputmethods/libqimsw-none.so 7f976e2a0000-7f976e4a0000 ---p 00005000 08:05 556037 /usr/lib/qt3/plugins/inputmethods/libqimsw-none.so 7f976e4a0000-7f976e4a1000 rw-p 00005000 08:05 556037 /usr/lib/qt3/plugins/inputmethods/libqimsw-none.so 7f976e4a1000-7f976e4ae000 r-xp 00000000 08:05 556036 /usr/lib/qt3/plugins/inputmethods/libqimsw-multi.so 7f976e4ae000-7f976e6ae000 ---p 0000d000 08:05 556036 /usr/lib/qt3/plugins/inputmethods/libqimsw-multi.so 7f976e6ae000-7f976e6af000 rw-p 0000d000 08:05 556036 /usr/lib/qt3/plugins/inputmethods/libqimsw-multi.so 7f976e6af000-7f976e740000 r--p 00000000 08:05 617862 /usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf 7f976e740000-7f976e772000 r-xp 00000000 08:05 489552 /usr/lib/liblcms.so.1.0.16 7f976e772000-7f976e972000 ---p 00032000 08:05 489552 /usr/lib/liblcms.so.1.0.16 7f976e972000-7f976e974000 rw-p 00032000 08:05 489552 /usr/lib/liblcms.so.1.0.16 7f976e974000-7f976e976000 rw-p 7f976e974000 00:00 0 7f976e976000-7f976e9f0000 r-xp 00000000 08:05 489580 /usr/lib/libmng.so.1.1.0.9 7f976e9f0000-7f976eaef000 ---p 0007a000 08:05 489580 /usr/lib/libmng.so.1.1.0.9 7f976eaef000-7f976eaf4000 rw-p 00079000 08:05 489580 /usr/lib/libmng.so.1.1.0.9 7f976eaf4000-7f976eafb000 r-xp 00000000 08:05 556034 /usr/lib/qt3/plugins/imageformats/libqmng.so 7f976eafb000-7f976ecfa000 ---p 00007000 08:05 556034 /usr/lib/qt3/plugins/imageformats/libqmng.so 7f976ecfa000-7f976ecfb000 rw-p 00006000 08:05 556034 /usr/lib/qt3/plugins/imageformats/libqmng.so 7f976ecfb000-7f976ed17000 r-xp 00000000 08:05 490151 /usr/lib/libdvdread.so.3.2.1 7f976ed17000-7f976ef17000 ---p 0001c000 08:05 490151 /usr/lib/libdvdread.so.3.2.1 7f976ef17000-7f976ef18000 rw-p 0001c000 08:05 490151 /usr/lib/libdvdread.so.3.2.1 7f976ef18000-7f976ef39000 r-xp 00000000 08:05 556549 /usr/lib/kde3/plugins/styles/klearlook.so 7f976ef39000-7f976f138000 ---p 00021000 08:05 556549 /usr/lib/kde3/plugins/styles/klearlook.so 7f976f138000-7f976f13a000 rw-p 00020000 08:05 556549 /usr/lib/kde3/plugins/styles/klearlook.so 7f976f13a000-7f976f13f000 r-xp 00000000 08:05 489017 /usr/lib/libXdmcp.so.6.0.0 7f976f13f000-7f976f33e000 ---p 00005000 08:05 489017 /usr/lib/libXdmcp.so.6.0.0 7f976f33e000-7f976f33f000 rw-p 00004000 08:05 489017 /usr/lib/libXdmcp.so.6.0.0 7f976f33f000-7f976f35a000 r-xp 00000000 08:05 489845 /usr/lib/libxcb.so.1.0.0 7f976f35a000-7f976f559000 ---p 0001b000 08:05 489845 /usr/lib/libxcb.so.1.0.0 7f976f559000-7f976f55a000 rw-p 0001a000 08:05 489845 /usr/lib/libxcb.so.1.0.0 7f976f55a000-7f976f55b000 r-xp 00000000 08:05 489843 /usr/lib/libxcb-xlib.so.0.0.0 7f976f55b000-7f976f75a000 ---p 00001000 08:05 489843 /usr/lib/libxcb-xlib.so.0.0.0 7f976f75a000-7f976f75b000 rw-p 00000000 08:05 489843 /usr/lib/libxcb-xlib.so.0.0.0 7f976f75b000-7f976f75d000 r-xp 00000000 08:05 489006 /usr/lib/libXau.so.6.0.0 7f976f75d000-7f976f95c000 ---p 00002000 08:05 489006 /usr/lib/libXau.so.6.0.0 7f976f95c000-7f976f95d000 rw-p 00001000 08:05 489006 /usr/lib/libXau.so.6.0.0 7f976f95d000-7f976f97f000 r-xp 00000000 08:05 489243 /usr/lib/libexpat.so.1.5.2 7f976f97f000-7f976fb7f000 ---p 00022000 08:05 489243 /usr/lib/libexpat.so.1.5.2 7f976fb7f000-7f976fb81000 rw-p 00022000 08:05 489243 /usr/lib/libexpat.so.1.5.2 7f976fb81000-7f976fb86000 r-xp 00000000 08:05 489023 /usr/lib/libXfixes.so.3.1.0 7f976fb86000-7f976fd85000 ---p 00005000 08:05 489023 /usr/lib/libXfixes.so.3.1.0 7f976fd85000-7f976fd86000 rw-p 00004000 08:05 489023 /usr/lib/libXfixes.so.3.1.0 7f976fd86000-7f976fede000 r-xp 00000000 08:05 227622 /lib/libc-2.7.so 7f976fede000-7f97700de000 ---p 00158000 08:05 227622 /lib/libc-2.7.so 7f97700de000-7f97700e1000 r--p 00158000 08:05 227622 /lib/libc-2.7.so 7f97700e1000-7f97700e3000 rw-p 0015b000 08:05 227622 /lib/libc-2.7.so 7f97700e3000-7f97700e8000 rw-p 7f97700e3000 00:00 0 7f97700e8000-7f97700f5000 r-xp 00000000 08:05 227647 /lib/libgcc_s.so.1 7KCrash: Application 'k9copy' crashing...