The science explained in these pages has been used, sometimes even developed, by commercial companies. They have patents or trademarks that protect their intellectual property.

Sometimes it is easier to use the trademark names than the scientific descriptions.

Any trademarks mentioned are those of the rightful owners.

In particular:

  • Winamp is a trademark of Nullsoft Inc.
  • CD technology patents were developed by PHILIPS and SONY.
  • MP3 is a version of MPEG produced by the MPEG organization.
  • Quicktime is a trademark of Apple Computer.
  • Realmedia is a trademark of Real Labs.


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