It appears that the major record labels have managed to  effectively kill off a new start up Sonific who tried to create a business around properly licensing music for podcasting & blogging sites thus creating a more controlled environment revenue rather than the currently Wild West situation that predominates outside of the top tier of blogs not to mention revenue for the record labels. According to Sonific they have wound things up because of the licensing situation with the record labels. Tragic that the record industry again appears to have architected a situation where they may potentially earn some revenue and at least slow the amount of unlicensed music flying around has failed.

Sonific announcement here.