HP Digital Entertainment Center z545PC Magazine has a review of the HP Digital Entertainment Center z545, a Media Center PC which packs in a DVD player, CD changer, FM tuner, and a digital video recorder into a $2000 package which looks more like an A/V component than a PC. PC Mag likes the entire package, especially its quiet demeanor and dual tuners (for recording two shows at once), but notes that the z545 still doesn't have support hi-def and does require a separate amplifier to power your speakers.