Ask the expert: Your technology questions answered

Are you confused about the latest technology? Are you struggling to understand the difference between DVD and Blu-ray and which one’s better for you? Do you want to upgrade your gadgets but don’t know which format to pick? With things changing so fast, it’s hard to keep up, but technology expert David Phelan is on hand to help.

Each week, he’ll answer one of the questions you’ve asked, and which are listed below, giving his opinion on the latest – and future – developments and clarifying the confusion about modern technology. Don’t be in the dark – ask David a technology question.

Email your questions to our expert at sony@theindependentonline.co.uk