You might need some codecs
Enable Restricted Repositories in fedora 17
To enable the RPM Fusion repository just install
yum localinstall --nogpgcheck http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm
Also Video Codecs for fedora 17
To play various Video formats we need some codecs.
yum install gstreamer gstreamer-plugins-good gstreamer-plugins-bad gstreamer-plugins-ugly
FFMpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.
yum install ffmpeg ffmpeg-libs
K3b MP3 decoder plugin
When you start k3b it says no mp3 decoder plugin. to install
yum install k3b-extras-freeworld
DVD and Video Players for fedora 17
In order to play DVDs you must install the appropriate codecs.
yum install libdvdread libdvdnav lsdvd
you can use Livna for installing libdvdcss.
rpm -Uvh http://rpm.livna.org/livna-release.rpm
yum install libdvdcss
VLC media player is a highly portable multimedia player and multimedia framework capable of reading most audio and video formats as well as DVDs, Audio CDs VCDs, and various streaming protocols. It can also be used as a media converter or a server to stream in uni-cast or multi-cast in IPv4 or IPv6 on networks.
Here are some more links
Good luck to you.