European Union has hit out at Apple's bundling of its popular iPod music players and its iTunes online music store, according to German weekly magazine Focus.

"Do you think it's fine that a CD plays in all CD players but that an iTunes song only plays in an iPod? I don't. Something has to change," EU Consumer Protection Commissioner Kuneva said in an interview.

Norway, a European country that is not in the EU, is battling Apple for the same reason. In January, it said the computer and software giant must liberalize its music download system by October 1 or face legal action.

Pressure on Apple has been building, with consumer rights organizations from Germany, France, Finland and Norway recently agreeing a joint position in their battles against iTunes.

They argue that Apple uses digital rights technology to limit consumers' free use of songs bought on iTunes, including the ability to copy and transfer songs to other users and other MP3 devices besides the Apple iPod.

Kuneva is leading a review of the eight basic laws which govern cross-border consumer rights.