Sir; having read an article in May 26 issue of The Grocer in the Magazine marketing section headlined, Riding a revolution, I felt the full story hadn't been told. The only publishers mentioned were Wvip, Future and Paragon, with no mention of Haymarket Consumer Publications and What Hi-Fi? Sound and Vision. While I generally agree with the article, it focuses too heavily on DVD, the films and software. It was nice to see our publication DVD Magazine pictured but the article would have been complete with some comment about the evolution of hi-fi and home entertainment sectors into a single sound and vision category which has been borne out of the increasing number of purchases of home cinema surround sound products. The consumer electronics market has seen growth as home cinema and 5-channel surround sound systems have become affordable. As a result authoritative and independent magazines that offer information on this technology are demanded, the software is therefore driven by hardware purchases. The What Hi-Fi? brand has established itself as the independent, authoritative buying guide over the last 25 years for hi-fi and more recently home entertainment products. With a newstrade ABC of 59,219 you can see it sells twice as many as What Video & TV, Wvip's largest selling title. Simon Denny Publishing manager What Hi Fi? Sound & Vision Teddington Middlesex {{LETTERS }}