Quote:
Originally Posted by catmother 
Testing a disk, Cyborg (Van Damme) There was noticeable color shifting, in particular during slow camera pans I notice changes in Saturation and Hue i.e a color like red would drift to pink and/or an orange tint.
IMO a poorly authored disk and perhaps a CUE deficiency in the 702 processor. This problem is only present on a few disks, the majority are OK.
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No such thing as "CUE" in the NTSC world. Each line contains both I and Q chroma components. This phenomenon could be caused, in principle, by poor comb filtering, as horizontal motion in particular tends to violate the "frequency interleaving" condition, causing chroma information to leak into the luma signal & vice versa.
On the other hand, the issue could be tracking error, disc eccentricity, & timebase drift, which would have the same general effect, although there would be little reason for it to be most pronounced in scenes with panning.
Quote:
Originally Posted by catmother 
Now with my DVDO iScan Duo these color anomalies are gone. The 702 outputs to the Duo via composite which seems better than S-Video. Some posts in other threads suggest the S-video conversion in the 702 is not accurate.
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If the iScan has a superior comb filter, or better subcarrier phase lock/timebase recovery, it may be able to correct errors arising in the player circuitry. One thing to check, also, is that the rather mysterious "Soft Picture" function (apparently intended for people used to video from VHS tape) is not turned on. This processing is only applied to the S-Video output.
Quote:
Originally Posted by catmother 
My media players, a NeoTV550 and Dune H1 do not have a source direct function and processing the video raised the possibility of color space contamination. So far I have not seen that problem with the Media players output to the Duo.
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You are always going to have colorspace issues, since the LD is recorded in the YIQ composite format, whereas essentially all video files use some type of YUV component format. As long as you are preserving that down the chain, however, & not using RGB at some point (say, a VGA interconnnexion, or DVI/HDMI set to RGB mode), there should be no real problems.