The salesman keeps telling my brother that these two are one and the same. I am weary of believing salesmen =). Could some people help me out and give me their opinions on both of these technologies?

Thanks.

I've heard the term DRC somewhere. If the salesman said it was the same as progrssive scan, he might be half right. DRC could be the manufacturer's special name for "Internal Line Doubler"... (like Toshiba has COLORSTREAM instead of Component out)... TVs cant be true progressive scan with a 3:2 pulldown, unless the DVD player outputs it... A line doubler is technically progressive, but real progressive scan is better than the best line doublers.

There's a review of a Sony HD set in the current (Nov.) issue of Sound & Vision. DRC is Sony's method of line doubling. S&V liked the Sony's picture using DRC, but said when they used a progressive scan player they got a better image. This is generally true for a all TVs, a prog scan player will produce a better image.

The following is from Panasonic.
____________________________________________
Advantages of progressive conversion.

Line doublers are used in other high-end home entertainment systems to provide progressive scanning. These may be stand-alone devices or incorporated into a digital TV. Impressive as they may be, DVD in-player progressive conversion has three big advantages over line doublers:

1) High precision and stability
A DVD-Video disc mastered from a film holds all the data necessary to produce an accurate progressive image, whereas an external line doubler must take hints from the video source to determine the source material and frame allocation.

2) All-digital conversion minimizes signal degradation.
Since the signal from the DVD-Video disc is digital, progressive conversion can be performed digitally inside the player. Signal quality is protected until it leaves the player's analog output. In contrast, a stand-alone or in-TV doubler first receives information from the analog output of the source device then converts this analog signal back to digital for processing. Finally, it must translate the signal back to analog before outputting it. All this back-and-forth translation is much more likely to degrade the signal.

3) Processing is optimized to DVD-Video's high image quality.
Line doublers built into digital TV sets are designed to work with a variety of video sources, so their settings are not necessarily ideal for DVD-Video. Progressive conversion is optimized for the high resolution and low noise of the DVD-Video format. This enables the unit to preserve DVD-Video picture quality for display on all screen sizes, from direct-view CRT to projectors.



[This message has been edited by steve f (edited October 29, 2000).]

quote:<HR>DRC is Sony's method of line doubling.<HR>

Just as i thought