Sirius Satellite Radio plans to launch an online radio subscription service, dubbed Sirius Internet Radio Plus, for a subscription fee of $12.95 per month for the basic package.

The service will allow users to hear music, including music channels and select talk channels, played at CD quality - 48kps (the current free Sirius internet radio service offers streaming audio at 32kps), according to Orbitcast (via MediaBuyerPlanner).

Existing subscribers can upgrade to SIR Plus for an additional $2.99 a month. No additional channels will be available through the service, which is simply an upgrade in sound quality.