For example in the past, how would movies or TV shows get copied on to millions of VHS tapes for people to watch at home? Do they all get copied from the very Original tape and how did they make sure that the original wasn’t damaged or something…?
In: Technology
There were special machines used for duplicating VHS tapes.
They used thermal magnetic duplication and could copy a tape at up to 900x faster than real time.
You need a machine like this one here, plus a few others: http://www.otari.com/support/vintage/t710/index.html
First you have one machine that you feel the video/audio signal into and it creates the master.
You load the master into the 2nd machine, and it spits out recorded video tape at high speed.
A 3rd machine takes the newly recorded tape and loads it into the video cassettes.
20 years ago, expect to pay about $500,000 for a complete setup.
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