Not that we'll be running to the shops to buy one, but Robbie Williams' Greatest Hits album is to be sold in memory card format for mobile phones. It is believed to be the first time a major artist has sold music on the small, portable format, reports the BBC. The album will also come with video content and will work with high-spec phones and hand-held computers, such as the iPaq. The card, at £29.99, will be available for sale at 600 Carphone Warehouse stores across the UK from next month. Multimedia Memory Cards (MMC) can hold more than one gigabyte of data - the equivalent of about one-and-a-half compact discs. Danny Van Emden, digital media director at EMI Music, said: "The UK is in love with the mobile and it's the one device that we know our artists' fans have with them at all times - so the memory card is simply the next logical chapter in the affair." The Carphone Warehouse is already in talks with EMI to deliver more pre-loaded memory cards this Christmas. Kevin Gillan, Carphone Warehouse's director of group business development, said: "We see pre-loaded music memory cards as the next step and part of a general consumer hunger for more mobile content."