Music retailer JB HI-FI have announced a new online music service called "JB HI-FI NOW" is anticipated to launch in 2012.

The new streaming service which will be available on PC and Mac will launch with 6 to 8 million tracks and 100,000 artists and continue to grow over time.

JB HI-FI say in their Full Year Results Presentation for 2011 the service will allow for "unlimited access and listening from your Mac or PC". A mobile client will follow shortly after.

The service is said to rival Sony's Qriocity Music Unlimited service.