首先安装gstreamer的解码器，gstreamer是gnome主推的多媒体平台。默认没有安装完全，导致mp3等不能播放。
sudo apt-get install gstreamer-*
把所有的gstreamer的包安装上。
编辑apt源
sudo vi /etc/apt/sources.list
＃添加一下的源
deb http://ubuntu.cn99.com/ubuntu/ edgy main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-security main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-updates main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-proposed main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ edgy-backports main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-security main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-updates main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-proposed main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ edgy-backports main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu-cn/ edgy main restricted universe multiverse
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然后依次输入以下命令：
sudo apt-get update
sudo apt-get install totem-xine libxine1-ffmpeg libxine1-gnome libxine1-plugins libxine1
sudo apt-get install w32codecs
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（责任编辑：云子）
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