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Path: utzoo!linus!wivax!decvax!harpo!seismo!presby!burdvax!psuvax!starner
From: starner@psuvax.UUCP
Newsgroups: net.video
Subject: Re: Copying Your Tapes
Message-ID: <155@psuvax.UUCP>
Date: Sat, 25-Jun-83 10:45:40 EDT
Article-I.D.: psuvax.155
Posted: Sat Jun 25 10:45:40 1983
Date-Received: Sun, 26-Jun-83 07:16:12 EDT
References: <2046@rochester.UUCP>
Organization: Penn. State Univ.
Lines: 39

In response to your questions:
[1]  Any dubbing of a tape is going to reduce the quality
     of the destination copy. Based on the fact that the
     home recorders do not generate a Broadcast quality
     control pulse (sync) you tend to lose picture stability
     when you copy. (unless you process the signal through
     a Time Base Corrector which cleans up the control
     signals and costs much $$). Yes, the speed at which you
     recorded the original will effect the quality of the copy.
     Copies made from the highest speed will be acceptable,
     while copies made from a slow speed will be very unstable.

[2]  Making a copy by modulating and remodulating your signal
     will seriously degrade your picture quality. If you want
     a best possible (given the quality of your equipment) copy
     spend the money on video patch cords, it will be well
     worth the money. They are not excessively expensive.
     (If you have BETA you need a BNC->BNC connector for video
     and an audio cable that will vary from machine to machine,
     usually a 1/8" phone plug to 1/8" phone plug) (if you
     have VHS you need an RCA phono -> RCA phono for both
     video and audio -- this is a standard plug such as that 
     which is used for connection between stereo components --
     It has been my experience that the VHS machine RCA jacks
     are somewhat picky. If you cannot get a good connection
     at the plug keep plugging it in and you will eventually
     get a clean signal)

Sorry this has been a little long, but I wanted to get the
straight facts clear. If anyone has any other specific questions
concerning eqiupment that they do not want to post to the net
I would be happy to correspond via mail.

				Mark L. Starner
				Penn State University
				{allegra,burdvax}!psuvax!starner