Capture Questions

[Torrential]

Hello all,

I have an ATI TV Wonder Pro PCI Capture Card. When I capture off of certian channels (particularly Cartoon Network), I get this rainbow in a lot of places (screenshot links below). I am capturing off of a Dish, in uncompressed AVI format. I have tried capturing in the provided ATI MMC software, then VirtualVCR, both with the same results. The rainbows are everywhere, and I was wondering why this happens and what I can do to eliminate it. Thanks!

Screenshot 1: http://img232.imageshack.us/img232/3002/14fl.png

Screenshot 2: http://img232.imageshack.us/img232/9829/22vz.png

[Bjs]

Get a vcr , and some good qualityy tapes , and record them on the vcr first , then record them using you capture device from the playback from the vcr .

Its very common with animation types , esspecially for ati capture devices , I refer it too colour bleeding .

If this appears in normal video source , as in ordinary movie (non anims) , then the ati card is causing the problem .

There are numerous sites online where previous versions of drivers can be obtained from which might fix the problem .

It is well known with asus and matrox cards to install not the latest drivers , but older versions which avoid specific capture problems .

[edDV]

Get a vcr , and some good qualityy tapes , and record them on the vcr first , then record them using you capture device from the playback from the vcr .

Its very common with animation types , esspecially for ati capture devices , I refer it too colour bleeding .

If this appears in normal video source , as in ordinary movie (non anims) , then the ati card is causing the problem .

There are numerous sites online where previous versions of drivers can be obtained from which might fix the problem .

It is well known with asus and matrox cards to install not the latest drivers , but older versions which avoid specific capture problems .

I fail to see how VHS or SVHS would improve that capture. We are looking at an NTSC source tape. My first suspicion is that the areas of concern (e.g. converging sharp lines) are where luminance bandwidth rises into the 3-4MHz region where it crosstalks into chroma (3.58MHz centered +/- 0.5MHz). This is also known as chroma crosstalk or cross color. I may be wrong but that is what it looks like to me.

The best way to improve your capture is to get a capture card with a quality comb filter.

See: http://members.aol.com/ajaynejr/vidcomb.htm

The only problem is current capture cards with decent comb filters have poor driver support. Maybe someone can suggest an exception.