I don’t know. I’ve been using Linux for so long, I’ve long since stopped looking at such sites. But I did start a concepts page for openSUSE Linux, which has been greatly improved by contributions of others in the community: Concepts - openSUSE
Reference installing software, its best IMHO to install prepackaged applications that are packaged as “rpms” (see the concepts link above). But before I can go into detail on that, some basics on openSUSE multimedia, if you let me pontificate a bit (sorry) about openSUSE philosophy. Multimedia as provided by Novell/SuSE-GmbH is mostly crippled for all proprietary codecs. This is because openSUSE is openSUSE. Note the emphasis on open. Novell/SuSE-GmbH try harder than most Linux distributions, to ensure openSUSE adheres reasonably close to the open source free software philosophy, which is to NOT PROVIDE software which is NOT free to give away, and not provide software where the source code is not available, and not provide software which is NOT free to copy, and not provide software which is NOT free to modify, and not provide software which is NOT free to give away modified copies. This means many proprietary hardware drivers, and proprietary video/audio codecs, and many price free proprietary applications (but not opensource free) are not included with Novell/SuSE’s open source Linux “openSUSE”.
But you can EASILY get 3rd party packages to work around this. EASILY. Setup your Software Package Manger with OSS, Non-OSS, Update and Packman repositories. Just those 4. No others. None. You can add others ONLY after you learn the risks and problems that exist with the others, and ONLY after you learn how to work around the dependency and other problems that can crop up as a result of adding extra repositories (repos). There is guidance here for adding repos to openSUSE Repositories - openSUSE-Community … click on your SuSE version and follow the instructions and add ONLY OSS, Non-OSS, Update and Packman. Just those 4. In particular, do NOT add videolan, as some of its apps and codecs are not compatible with packman and will cause breakage.
Now, you may have figured this out already, but just in case not, I typically recommend, after the 4 repos are added, with your PC connected to the internet, go to YaST > Software > Software Management and change the “filter” to “search” and install the packman packaged versions of smplayer, mplayerplug-in, vlc, libxine1, libffmpeg0, w32codec-all, amarok, amarok-xine. That should get your started. For openSUSE-11.0 and earlier, you will need to remove xine-lib before installing libxine1. Reference flash-player, you should get an rpm for flash-player-10 after from the “update” repository that I recommended you add.