BBC NEWS | Entertainment | Music | Online music royalties challenged: "The BPI - which represents more than 300 UK record labels - has joined seven online services to bring the action.
They have taken the Mechanical Copyright Protection Society (MCPS) and the Performing Right Society (PRS) to a copyright tribunal.
The MCPS and PRS want to charge more for songs downloaded from the internet than for those on CD.
The MCPS-PRS Alliance - who set and collect royalties on behalf of composers, songwriters and publishers - are proposing a tariff of 12% of gross retail revenues on most online music.
Currently, royalties on CDs stand at 6.5% of retail price, while broadcast radio rates are up to 5.25% of net advertising revenues."