Where can I get an mp3 encoder?

At one time, LAME was simply a set of patches against the separately distributed ISO demonstration source, hence the claim that it "ain't an encoder". The ISO code had a restrictive license but was available without charge. In May 2000, the LAME project reimplemented the last of the ISO source code, and thus LAME was then a totally new implementation — compiling recent versions of LAME no longer requires the ISO source code. As recent LAME releases are no longer a patch against ISO encoder code, LAME is now itself an MP3 encoder and the LAME acronym has become a bit of a misnomer (or, an anachronism).