rmovie is a Ruby extension for accessing and
retrieving information from video and audio files.
RMovie can access many video formats (.mov, .avi,
.mpg, .wmv, etc.) and can output movie frames to
RMagick as images.
RBrainz is a Ruby client library to query the
MusicBrainz database using the MusicBrainz XML Web service. It follows the design of the MusicBrainz
client library reference implementation, and
supports the MusicBrainz XML Metadata Schema
MB-DiscID provides Ruby bindings for the
MusicBrainz DiscID library libdiscid. It allows
you to calculate MusicBrainz DiscIDs from audio
CDs, which you can use to find the release entry
for your CD in the MusicBrainz database.