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Message: <blockquote data-quote="KevL" data-source="post: 284053" data-attributes="member: 11798">Have done some investigation of dinterlacing setup on my system with Nvidia PureVideo Decoder and ATI Catalyst 8.4 using Pal Format SD signals direct from my TV card in MP.I can switch off deinterlacing in the video driver altogether and the picture quality is unchanged - which means that the decoder must be doing the deinterlacing and the video card driver is not doing it (when set to auto).I have also experimented with the deinterlace settings in the Pure Vieo decoder, trying various options and none seemed to get rid of the slight occasional judder in normal playback or the gross judder apparent in the moving text ticker at the bottom of the Bloomberg Channel screen. The Pure video decoder has no option not to deinterlace (I think) so I havnen't been able to try it set to off and letting the video driver do it instead.I think I'm now ready to try the FFDshow decoder/deinterlace setup to see if this gives me a better picture. Given I'm stuggling with the settings on simple MPEG decoder and Video card then given the number of options avaliable in FFDShow - I might be some time. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />[USER=10940]bigj[/USER], Many thanks for the recommendation but on my setup I'm fairly sure bilinear filtering actually degrades picture quality - though this might be to do with the other settings being wrong elsewhere. On my setup having this filtering enabled seems to make the picture over filtered. Faces seem smoother like everyone has thick make-up on or as if they have been airbrushed to remove wrinkles etc. Like I say this might be due to some wrong setting elsewhere so I will bear it in mind when I've got rid of judder etc.Kev</blockquote>

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