ruby-taglib2 homepage
ruby-taglib2 is a Ruby interface to TagLib,
the audio meta-data library.
It allows Ruby programs to read and write meta-data of all the audio formats supported by TagLib.
It was written because ruby-taglib suffers severals bugs with ruby 1.9.
Take a look at the documentation.
ruby-taglib2 sources can be donwloaded here.
See README file for installation instrutions.