Royal Philips Electronics is one of the biggest electronics companies in the world, and it's also the largest in Europe! Philips have concentrated a lot of effort into their UK operations over the years, with the result that they are very well-known around here, and stand for quality in many fields of electronics and computing.
Why should you care about this? Because they know what they're talking about when it comes to optical discs. Did you know that Philips were the co-inventors (along with Sony) of the Compact Disc, and that they also invented the standard audio cassette twenty years before that?