Question: Which VirtualDub filter for VHS output

Video Edit Software Discuss, Which VirtualDub filter for VHS output at Software forum; Hi dear experts , As I regularly do it if I'm not at home when a good movie is broadcasted on TV nets, I recently recorded one on my VHS. Surprize, surprize, when I tried to watch it, the screen is filled by red and green pixels lines giving a

Posted: 06-10-2009

harmagedon0606 (New on Forum): Posts: 5

Hi dear experts

,
As I regularly do it if I'm not at home when a good movie is broadcasted on TV nets, I recently recorded one on my VHS.
Surprize, surprize, when I tried to watch it, the screen is filled by red and green pixels lines giving a very bad quality image. Ultimate surprize : the commercials are perfectly clean !!!

Using some VirtualDub standard filters, I tried to filter out this "video bakground noise" without success.

Being a newbee in video enhancement, I'm not sure that I choosed the right filters and settings.
Q1 : For my understanding, can anybody explain why the commercials are correct and not the movie itself?
Q2 : Which filter(s) / setting(s) could be used to get a clean image? ... if any.

Thanks beforehand for your help

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Today (MyCE Staff): Posts: 15,596

Posted: 06-10-2009

Whappo (MyCE Die Hard): Posts: 1,822

It would seem that the content is copy protected, obiously the commercials are not. To my knowledge there is no VirtualDub filter that will remove the copy protection, sorry.

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Posted: 06-10-2009

Hemispasm (Senior Moderator): Posts: 5,277

Is it possible to copy-protect video broadcasted over the air or cable so that you can't make a vhs copy? And this can be selective to the movie and not the ads in between? I didn't know that!

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Posted: 06-10-2009

midders (Batchshrink Author): Posts: 698

Probably Macrovision protection; it's a signal embedded in the broadcast that doesn't affect the picture on the TV, but interferes with the VHS writing mechanism. You can use a simple electronic filter between the aerial and your VHS recorder to remove the protection, but there is no way (AFAIK) to recover already recorded material that has this problem; the data has been corrupted.

You can build a filter yourself if you're that way inclined (parts from maplin/radioshack/RS Components etc.) or buy them pre-made.

Slainte

midders

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Posted: 06-10-2009

Hemispasm (Senior Moderator): Posts: 5,277

Quote:

Probably Macrovision protection; it's a signal embedded in the broadcast that doesn't affect the picture on the TV, but interferes with the VHS writing mechanism.

Thanx for the heads up - did not know one could embed macrovision protection over the air. Not implemented in my part of the world.

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Posted: 09-10-2009

harmagedon0606 (New on Forum): Posts: 5

Thanks for your explanations,

, I learned something too.

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