Sony has announced deals with both Napster and that sees free music bundled with certain Walkman digital media players. voucher cards for five free digital downloads have been placed inside the Walkman "Wirefree" series (the NWZ-A826K and NWZ-A828K) boxes being sold through Argos stores in the UK and Ireland.

Customers can claim their free music video downloads by logging on to and entering their unique download code.

In addition, all purchasers of Sony's Walkman Wirefree Bluetooth models, the 16GB NWZ-A829, 8GB NWZ-A828K and 4GB NWZ-A826K will get a 14-day "Napster To Go" trial and five free permanent downloads.