Mine

pacman -S gstreamer0.10 gstreamer0.10-a52dec gstreamer0.10-aalib gstreamer0.10-alsa gstreamer0.10-amrnb gstreamer0.10-annodex gstreamer0.10-bad gstreamer0.10-base gstreamer0.10-bz2 gstreamer0.10-cairo gstreamer0.10-cdio gstreamer0.10-cdparanoia gstreamer0.10-dts gstreamer0.10-dv gstreamer0.10-dv1394 gstreamer0.10-dvdread gstreamer0.10-esd gstreamer0.10-faac gstreamer0.10-faad gstreamer0.10-ffmpeg gstreamer0.10-flac gstreamer0.10-gconf gstreamer0.10-gdkpixbuf gstreamer0.10-gnomevfs gstreamer0.10-good gstreamer0.10-hal gstreamer0.10-jpeg gstreamer0.10-ladspa gstreamer0.10-lame gstreamer0.10-libcaca gstreamer0.10-libpng gstreamer0.10-libvisual gstreamer0.10-mad gstreamer0.10-mms gstreamer0.10-mpeg2dec gstreamer0.10-musepack gstreamer0.10-neon gstreamer0.10-ogg gstreamer0.10-pango gstreamer0.10-pitfdll gstreamer0.10-python gstreamer0.10-sdl gstreamer0.10-shout2 gstreamer0.10-sidplay gstreamer0.10-speex gstreamer0.10-taglib gstreamer0.10-theora gstreamer0.10-ugly gstreamer0.10-vorbis gstreamer0.10-xvid gstreamer0.10-farsight
:: gstreamer0.10-0.10.13-1: local version is up to date. Upgrade anyway? [Y/n] 
:: gstreamer0.10-alsa-0.10.13-1: local version is up to date. Upgrade anyway? [Y/n] 
:: gstreamer0.10-base-0.10.13-1: local version is up to date. Upgrade anyway? [Y/n] 
:: gstreamer0.10-gconf-0.10.6-1: local version is up to date. Upgrade anyway? [Y/n] 
:: gstreamer0.10-good-0.10.6-1: local version is up to date. Upgrade anyway? [Y/n] 
resolving dependencies... done.
looking for inter-conflicts... 
done.

Targets: gstreamer0.10-0.10.13-1  gstreamer0.10-base-0.10.13-1  gstreamer0.10-ugly-0.10.6-1  a52dec-0.7.4-3  gstreamer0.10-a52dec-0.10.6-1  
         gstreamer0.10-good-0.10.6-1  gstreamer0.10-aalib-0.10.6-1  gstreamer0.10-alsa-0.10.13-1  amrnb-0.0.1-1  gstreamer0.10-amrnb-0.10.5-1  
         gstreamer0.10-annodex-0.10.6-1  gstreamer0.10-bad-0.10.4-1  gstreamer0.10-bz2-0.10.4-1  gstreamer0.10-cairo-0.10.6-1  libcddb-1.3.0-3  
         libcdio-0.78.2-1  gstreamer0.10-cdio-0.10.6-1  gstreamer0.10-cdparanoia-0.10.13-1  gstreamer0.10-dts-0.10.4-1  libdv-1.0.0-1  
         gstreamer0.10-dv-0.10.6-1  libraw1394-1.2.1-1  libavc1394-0.5.3-1  libiec61883-1.0.0-3  gstreamer0.10-dv1394-0.10.6-1  libdvdread-0.9.7-1  
         gstreamer0.10-dvdread-0.10.6-1  gstreamer0.10-esd-0.10.6-1  gstreamer0.10-faac-0.10.4-1  faad2-2.5-3  gstreamer0.10-faad-0.10.4-3  
         gstreamer0.10-ffmpeg-0.10.2-1  gstreamer0.10-flac-0.10.6-1  gstreamer0.10-gconf-0.10.6-1  gstreamer0.10-gdkpixbuf-0.10.6-1  
         gstreamer0.10-gnomevfs-0.10.13-1  gstreamer0.10-hal-0.10.6-1  gstreamer0.10-jpeg-0.10.6-1  gstreamer0.10-ladspa-0.10.6-1  
         gstreamer0.10-lame-0.10.6-1  gstreamer0.10-libcaca-0.10.6-1  gstreamer0.10-libpng-0.10.6-1  libvisual-0.4.0-1  libvisual-plugins-0.4.0-1  
         gstreamer0.10-libvisual-0.10.13-1  libid3tag-0.15.1b-2  gstreamer0.10-mad-0.10.6-1  libmms-0.3-1  gstreamer0.10-mms-0.10.4-1  libmpeg2-0.4.1-1  
         gstreamer0.10-mpeg2dec-0.10.6-1  gstreamer0.10-musepack-0.10.4-2  neon-0.25.5-6  gstreamer0.10-neon-0.10.4-1  gstreamer0.10-ogg-0.10.13-1  
         gstreamer0.10-pango-0.10.13-1  gstreamer0.10-pitfdll-0.9-1  gstreamer0.10-python-0.10.7-1  gstreamer0.10-sdl-0.10.4-1  speex-1.1.12-1  
         libshout-2.2.2-2  gstreamer0.10-shout2-0.10.6-1  gstreamer0.10-sidplay-0.10.6-1  gstreamer0.10-speex-0.10.6-1  gstreamer0.10-taglib-0.10.6-1  
         gstreamer0.10-theora-0.10.13-1  gstreamer0.10-vorbis-0.10.13-1  gstreamer0.10-xvid-0.10.4-1  libmimic-1.0.4-1  libjingle-0.3.11-2  jthread-1.2.1-1  
         jrtplib-3.7.0-1  gstreamer0.10-farsight-0.12.0-1  

Total Package Size:   10.60 MB

Proceed with installation? [Y/n] checking package integrity... done.
cleaning up... done.
(73/73) checking for file conflicts                 [##################################################################################################] 100%
error: could not prepare transaction
error: failed to commit transaction (conflicting files)
/usr/lib/gstreamer-0.10/libgstqtdemux.so exists in both 'gstreamer0.10-good' and 'gstreamer0.10-bad'
/usr/lib/gstreamer-0.10/libgstvideocrop.so exists in both 'gstreamer0.10-good' and 'gstreamer0.10-bad'
gstreamer0.10-bad: /usr/lib/gstreamer-0.10/libgstqtdemux.so exists in filesystem
gstreamer0.10-bad: /usr/lib/gstreamer-0.10/libgstvideocrop.so exists in filesystem

errors occurred, no packages were upgraded.