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<blockquote data-quote="kiwijunglist" data-source="post: 527811" data-attributes="member: 76888">i assume you've tried using the PDVD codecs within mediaportal.if you have loss of fine detail in dark pictures it maybe a color space problem.im not sure but maybe video overlay and VMR9 are using a different colour space.Basically some displays do 16-235 some do 0-255 some do both.If you are sending a 0-255 signal to a 16-235 display then you will loose dark detail, because all the colours from 0-15 are cropped to 16.To complicate things further SD video is sometimes rendered as 16-235 whereas HD video is rendered as 0-255This is a really simple/crude explanation its actually a bit more complexIf you think this is the problem, you could try the followingOpen ATI config, set to RGB 0-255Open ffdshow settings, set output to RGB 0-255Run ATI registry tweak&nbsp; <a href="http://home.comcast.net/~exdeus/ati-hd2x00/" target="_blank">ATI HD Registry Tweaks</a> (This makes sure all video is rendered/expanded to 0-255 to achieve consistent levels)I recommend keeping brightness in ATI config set to default and instead adjusting brightness/contrast on your displaySome users instead recommend running everything at 16-235The main things is to use the same color space for output and display and have consistent levels, then adjust your brightness on your display.</blockquote>

[QUOTE="kiwijunglist, post: 527811, member: 76888"] i assume you've tried using the PDVD codecs within mediaportal. if you have loss of fine detail in dark pictures it maybe a color space problem. im not sure but maybe video overlay and VMR9 are using a different colour space. Basically some displays do 16-235 some do 0-255 some do both. If you are sending a 0-255 signal to a 16-235 display then you will loose dark detail, because all the colours from 0-15 are cropped to 16. To complicate things further SD video is sometimes rendered as 16-235 whereas HD video is rendered as 0-255 This is a really simple/crude explanation its actually a bit more complex If you think this is the problem, you could try the following Open ATI config, set to RGB 0-255 Open ffdshow settings, set output to RGB 0-255 Run ATI registry tweak [url=http://home.comcast.net/~exdeus/ati-hd2x00/]ATI HD Registry Tweaks[/url] (This makes sure all video is rendered/expanded to 0-255 to achieve consistent levels) I recommend keeping brightness in ATI config set to default and instead adjusting brightness/contrast on your display Some users instead recommend running everything at 16-235 The main things is to use the same color space for output and display and have consistent levels, then adjust your brightness on your display. [/QUOTE]

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