This disk contains the training videoes sold by Marshall Kirk McKusick,
one lecture series per subdirectory.  The videos are encrypted using
aes-256.  There is a unique key associated with each directory (i.e.,
all the videos for a particular lecture series are encrypted using
the same key).  The key for your lectures can be obtained from
Marshall Kirk McKusick <mckusick@mckusick.com> after the payment
of an appropriate fee.  For fee details, see

	http://www.mckusick.com/courses

The "src" directory contains a shell script "decryptit" which will
decrypt a series of lectures.  The decryptit function is used as:

	decryptit Key Destdir lecture [lecture] ...

For example to decrypt all the lectures in a series into the current
directory one would use:

	decryptit Key . *.bdes

Or to decrypt the first lecture in the current directory into /var/tmp,
one would use:

	decryptit Key /var/tmp/ *lecture01*

The script assumes that your system has openssl in /usr/bin/openssl.
If it is not in this directory, correct the path in the OPENSSL
variable at the top of the decryptit script.

	Marshall Kirk McKusick
	January 19, 2018