Whether the "mp3 on a USB stick" idea holds is about to be verified. As of October 29, sales of music on USB sticks will be included in the official UK charts for the first time. An email sent by the Official UK Charts Company said it will include sales of two types of memory sticks: "Standard" Digital Memory Devices (512MB) and "Deluxe" DMDs (up to 5GB). Standard DMDs are expected to include albums or singles with some added multimedia content. Meanwhile Deluxe DMDs will be able to hold more songs, video, multimedia and other "added value" content. Retail prices are expected to be around £5 for the Standard DMDs, with Deluxe DMDs costing £10.