Currently there is only source available for Obs. If enough people bug me about it, I'll see about creating an rpm. As usual the source is distributed under the GPL.

Version 0.4.0 is the latest stable release version.
Version 0.5.0-pre2 is the latest prerelease version.
The latest and greatest source is available via CVS.

• obs-0.5.0-pre2.tar.gz Linux 2.x.x/glibc2 source
• obs-0.4.0.tar.gz Linux 2.x.x/glibc2.x source
• perl_modules-0.4.0.tar.gz Required perl modules (for 0.5.0 as well)
• perl_modules-0.3.0.tar.gz Required perl modules (for 0.3.0)
• libshout-1.0.7-rk.tar.gz libshout-1.0.7 extracted from the icecast CVS.
• xingmp3-1.0.0a.tar.gz xingmp3-1.0.0a needed for Obs reencoding.