dont know for sure,
but i guess if it changed your music's "tags"
and seeing it screwed up you'll probably have no luck using a tag editor the easy way (it checks the info it has and completes the rest)
but there's 1 more thing i found that should have more succes at getting the right info.
Acoustic fingerprinting
Main article: Acoustic fingerprint
An acoustic fingerprint is a unique code generated from an audio waveform. Depending upon the particular algorithm, acoustic fingerprints can be used to automatically categorize or identify an audio sample. Practical uses of acoustic fingerprinting include broadcast monitoring, identification of music and ads being played, peer-to-peer network monitoring, sound effect library management, and video identification.
http://en.wikipedia.org/wiki/Tag_editor
at the bottom it shares a list of editors you might wanne check out .
