The world's most complete guide to DVD-player features. If you're thinking of buying a DVD player, the number of features most players offer might overwhelm you. Sure, you know the basics: DVD is the hottest thing since the first time man invented something round. It consists of a disc the size of an audio CD but with 10 to 15 times more storage capacity. The disc has enough room to store a full-length motion picture with a digital picture that's better than that of laserdisc or satellite broadcasts. A progressive-scan DVD player connected to a widescreen TV can even approach the quality of high-definition television. The digital audio can include up to five full-range, discrete (meaning separate) channels with one LFE, or low-frequency-effects (aka the .1), channel for impact. The best part is that DVD players and movies should be compatible with your current system, no matter how archaic it is. You can buy a DVD player now and almost certainly enjoy the benefits right away, and you can upgrade various parts of your system and glean even more performance from the DVD software that you'll undoubtedly start collecting. What you really want to know, though, is what features to look for in your first/next DVD-player purchase. As usual, we're here to explain them to you. We've also included a couple of tips on how you can take your DVD/home theater experience to the next level.