When I try to capture a commercially produced VHS video I find the captured file loses lots of frames and a small square blocky icon appears on the screen, moving about randomly. This would appear to be some sort of copy protection (Macrovision?) which is stopping me making a good quality backup of my tape.
If I try the same thing with DVD I also get the same problem but this can be cured by ripping the DVD to my hard disk directly in the PC, which is of course not possible with a VHS tape.
I have a Macrovision removal scart to scart cable supplied by http://www.sonel.com which allows me to copy the offending tape between VCR's but not via my capture card. Are there any products capable of getting around this problem, eg Sima GoDVD or do I need a different capture card that is not affected by this copy protection 'interference'?
I have a GO VIDEO chs dual deck. It removes all VHS copy protection so you can copy commercial VHS. I do not know what the copy protection is exactly except it has jacked up audio sometimes and i have heard about what your talking about.
Have a look at this site http://www.helicon.avalon.hr, I constructed this project and cured all problems with VHS tapes when used with capture cards (ATI capture cards have very sensitive macrovision control which tends to false trigger with scene changes in brightness and contrast even when no macrovision protection is used). The cable supplied by Sonel did not work for me.
Note: The above project only works with PAL systems.