"...EMusic and Hewlett-Packard on Monday expanded their efforts to package music content with computer hardware, offering free MP3 downloads with HP Pavilion home computers. HP Pavilion buyers will get a free trial to EMusic Unlimited, a subscription service that offers access to a catalog of 150,000 MP3s, the companies said Monday. The deal is the second between the two companies. Last June, EMusic agreed to offer bonus MP3 music downloads to buyers of HP's CD rewritable drives (CD-RW). Analysts say that EMusic's pacts with HP probably have been "the most successful things" the company has done with its music catalog.