package libdvdread4 4.2.0-1ubuntu3 failed to install/upgrade: libdvdread4:i386 4.2.0-1ubuntu3 (Multi-Arch

[magomimmo]

failed to load a podcast with rhytmbox.
Insttaling components to listen to MP3.
Ubuntu 12.04

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libdvdread4 4.2.0-1ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: wl nvidia
ApportVersion: 2.0.1-0ubuntu2
Architecture: amd64
Date: Sat Apr 14 23:52:52 2012
DuplicateSignature:
 Unpacking gstreamer0.10-plugins-ugly (from .../gstreamer0.10-plugins-ugly_0.10.18.3-1ubuntu1_amd64.deb) ...
 Selecting previously unselected package liba52-0.7.4:i386.
 dpkg: error processing /var/cache/apt/archives/liba52-0.7.4_0.7.4-16build1_i386.deb (--unpack):
  liba52-0.7.4:i386 0.7.4-16build1 (Multi-Arch: no) is not co-installable with liba52-0.7.4:amd64 0.7.4-16build1 (Multi-Arch: no) which is currently installed
ErrorMessage: libdvdread4:i386 4.2.0-1ubuntu3 (Multi-Arch
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
SourcePackage: libdvdread
Title: package libdvdread4 4.2.0-1ubuntu3 failed to install/upgrade: libdvdread4:i386 4.2.0-1ubuntu3 (Multi-Arch
UpgradeStatus: Upgraded to precise on 2012-04-14 (0 days ago)

[Bryce Harrington (bryce)]

It looks like you tried installing the i386 version of the package when the amd64 version was already installed.

Can you explain in more detail what steps you took that resulted in this error? If it can be independently reproduced it may be worth investigating a fix for; otherwise we can chalk it up to just mis-installation.

[magomimmo (marcmaro)]

Tried to listen to a podcast with a .mp3 file.
Automatic request of package installation creates the error.
I nevere tried again to listen

[Launchpad Janitor (janitor)]

[Expired for libdvdread (Ubuntu) because there has been no activity for 60 days.]