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  1. It seems you've answered your own question. The short version: copy-protection, and the fact that DVRs do not make transportable archived recordings.

    2 Answers · Consumer Electronics · 10/04/2011

  2. The signal is called CGMS-A. Thete mey be technological fixes, but in respect for copyright...

    1 Answers · Consumer Electronics · 14/12/2009

  3. ...that they do not want you to be able to record is sent with a signal (CGMS-A) that alerts YOUR DVD/VCR unit to NOT...

    2 Answers · Consumer Electronics · 31/05/2008

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