AntcuFaalb said:

Also, an easy way to get the device to invert the phase is to turn it off and then on again.

So, if you want to test this...

Do a capture, turn everything off, and then turn everything on again and do another capture.

If that doesn't do it, then turn everything off and try again.

Repeat until you get a capture with inverted phase. It sometimes requires several captures until you get two with a 180-degree phase difference.

Interesting... so, I pass the LD video out to a DVD recorder in, then DVD recorder out to the video capture card in, I have the first capture; then I switch off everything, do a second capture, average the two and obtain a chroma noise free result, right?

How could I check the second capture has inverted phase? I mean, with a test disc it's quite obvious, but with real moving pictures?

I thought to do this: capture the test disc, then capture the LD; switch off everything, capture the test disc, check if the phase is inverted; if so, I continue and capture the LD, if not, I repeat until the phase is inverted. This is the best technique I have in mind... the only downside is I have no PAL test disc, so I can't apply this to PAL LDs... (**/)