Android handsets that are running an unofficial version of the Android operating system have been blocked from streaming rentals from the Android Market movie service.
The company said on its official help pages that attempting to use the movie rental service from a rooted device resulted in an error code. Rooting is the process of installing a custom version of the Android operating system in order to gain access to advanced controls and functionality of the platform.
"You'll receive this 'Error 49' message if you attempt to play a movie on a rooted device. Rooted devices are currently unsupported due to requirements related to copyright protection," Google said.
The post did not say specifically which copyright protection requirements necessitated Android devices being blocked from accessing the service.
Google launched the movie rental service on the Android Market in the US during its I/O developer conference on 10 May. The service — which requires Android 3.1 on tablets and Android 2.2 on phones — allows users to rent movies for 30 days for on-device streaming or offline playback.