It's compliant with FSF's definition of free software (http://www.gnu.org/philosophy/free-sw.html http://www.gnu.org/philosophy/free-sw.html) and Debian's guide

It's compliant with FSF's definition of free software (http://www.gnu.org/philosophy/free-sw.html http://www.gnu.org/philosophy/free-sw.html) and Debian's guidelines (http://www.debian.org/social_contract http://www.debian.org/social_contract). Stallman himself agreed that it was a good thing for Xiph to relicense their libraries from the LGPL to a permissive free software license (http://lists.xiph.org/pipermail/icecast-dev/2001-February/000005.html http://lists.xiph.org/pipermail/icecast-dev/2001-February/00...): In response to the change of license, Richard Stallman of the Free Software Foundation says, "I agree. It is wise to make some of the Ogg Vorbis code available for use in proprietary software, so that commercial companies doing proprietary software will use it, and help Vorbis succeed in competition with other formats that would be restricted against our use."