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All DVD players have "stepping" or "jaggies"...

Old 01-14-02, 10:28 PM
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All DVD players have "stepping" or "jaggies"...

Hey all,

I have seen many different DVD players on many different TV's and have noticed that (aside from a slight differentce in extent) that all DVD players exibit some degree of stepping or "jaggies"? This is the case -- correct?

Thanks,

Matt
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Old 01-15-02, 06:22 AM
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First, let me assume I'm correct in what you're referring to - the jagged lines at the top or bottom of the picture on a widescreen DVD. Sound and Vision magazine refers to this as "In-Player Letterboxing" when they review DVD players. This made a big difference for me when I was purchasing my player back in 1999. I went through a Toshiba, Pioneer and Panasonic before settling on a Sony. My Sony exhibits little to no "stepping". This seems to be a trend amongst Sony players - they are consistently rated as "good" in S&V for their in-player letterboxing where most other players rate fair or poor. I'm referring to reasonably priced players here - not $1,000 players. I also don't know if the current generation of players (esp. progressive scan) are better - I'd like to think they are. The scene in Apollo 13 where Tom Hank's wife is taking a shower and loses her wedding ring is a great demo scene to test this out. Hope this helps some.
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Old 01-15-02, 07:35 AM
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Well,

actually, i meant the stepping, or jagged lines throughout the entire picture -- on roof tops, on the edges of pieces of paper,. etc.....


Thanks,

Matt
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Old 01-15-02, 01:14 PM
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The same thing applies. Most players downconvert a 16:9 image by dropping every few lines (and adding black bars to the top and bottom). Sony and some others downconvert by taking an average of all of the lines instead. The results are a softer image but few/no jagged lines.
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Old 01-15-02, 05:28 PM
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it should be minimal with a good de-interlacer and and widescreen display. Most newer DVDs are flagged correctly and look really close to film in the scenario above.
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