this has been changed in the latest armark, can you test this in amarok
1.4.3 in edgy beta or from dapper-backports and let us know how it go's
** Changed in: amarok (Ubuntu)
Importance: Undecided => Low
Status: Unconfirmed => Needs Info
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MusicBrainz does not work
https://launchpad.net/bugs/62455