Past generations of Precision Drive were only able to compensate for warped discs by moving the entire optical block, which took more time and limited the amount of correction possible. Sony's new Precision Drive 3 system simplifies the process by moving the lens-instead of the entire optical block-for faster and more accurate error correction.Other DVD players detect image changes at the scan line level-Sony's Precision Cinema Progressive (PCP) system detects them at the pixel level. The picture is more faithful to the source-whether film or video-because separate, optimized algorithms are used to handle the differing pixel behavior. Separate algorithms are also used to process the moving and still parts of an image, resulting in sharp backgrounds with moving objects that are virtually free from motion artifacts.Playing MP3 Music on a Sony DVD player is easy. Just insert an MP3 encoded disc and press MENU. A blue screen pops up to display your folders. Scroll down the list using the remote or front panel cursor control to select the folder you want. The green files screen pops up to show the files in the selected folder. Select the file you want to hear and you're done. Finding music couldn't be easier.