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CLEV analyzes decoded video on the fly to determine image areas that need enhanced contrast, brightness, and saturation. You have to see it to appreciate it, but the effect is like yanking a piece of dusty film off the monitor. Running CLEV in split-screen mode lets you see the impact. As with the previous player interface, right-clicking on the image area brings up configuration options for video and audio enhancements. Another innovation, CyberLink PanoVision (CLPV), is similar to the black-bar eliminator technology found in high-end widescreen TVs. Rather than equally stretching all parts of a 4:3 aspect-ratio picture to fit the display of a widescreen laptop, which would distort the image, CLPV leaves most of the image untouched, stretching it logarithmically toward the edges. CLPV works equally well fitting a widescreen image (16:9) to a standard 4:3 screen.

In the article, PowerDVD 5 is described as "a dazzling upgrade". They go on to say more horsepower will be required to run as compared to prior versions. Claimed minimum requirements indicate you need a processor that runs at roughly 500-MHz to enjoy jitter-free images with CLEV enabled. Running CLEV with CLPV or CLMEI could up required CPU speed to around 1 GHz with at least 128MB of RAM.

Visit the Cyberlink website for more information. They also have a trial version for download if you would like to make a comparison for yourself.

Source: dvd-recordable.org