christer@optimusmintus ~/Downloads $ sudo dpkg -i lib32asound2-plugins_1.0.23-1+b1_amd64.deb
(Reading database ... 164320 files and directories currently installed.)
Unpacking lib32asound2-plugins (from lib32asound2-plugins_1.0.23-1+b1_amd64.deb) ...
dpkg: error processing lib32asound2-plugins_1.0.23-1+b1_amd64.deb (--install):
 trying to overwrite '/usr/lib32/alsa-lib/libasound_module_pcm_vdownmix.so', which is also in package ia32-libs 20090808ubuntu26
Errors were encountered while processing:
 lib32asound2-plugins_1.0.23-1+b1_amd64.deb