Different players use different means to generate a progressive-scan signal. Some merely double the number of existing scan lines, while the better ones perform what videophiles call 2:3 pulldown to compensate for the different frame rates of video (30 frames per second, or fps) and film (24 fps). As you'll see from our DVD player test reports, different techniques are used to accomplish 2:3 pulldown, and some players perform better than others. If you look closely using a properly set up TV, you'll find that a good progressive-scan player will provide smooth images without the ragged edges on diagonals and other blemishes produced by lesser players.
To reap the benefits of a progressive-scan output, however, you'll need an enhanced-definition TV (EDTV) or a high-definition (HDTV) set or monitor that can display signals in at least the 480p (the "p" is for progressive-scan) format. If you already own an EDTV or HDTV display, you'll want to seriously consider getting a progressive-scan player.
DVD-Audio and Super Audio CD
If music is as important to you as movies, consider a DVD-Video player that can also play DVD-Audio discs or Super Audio CDs. The catalog is small but growing, and some first-rate titles have already appeared that suggest the tremendous potential of high-resolution multichannel music. If you've ever felt that CD sound was lacking something, or that even the best Dolby Digital or DTS soundtracks are less than ideal, DVD-Audio and SACD will likely persuade you that your ears have met their match. There really aren't any practical limitations to potential playback quality with either format. Instead, any limitations lie in how well the recording itself is produced.
