My intent is to place the Electronics Course under a form of CopyLeft, called the Design Science License, at some point in the future. The reason that it is not presently under that license has to do with clauses in the license that require me to specify what exactly the "source data" is. I want to do this, but the mp3 recordings I have provided here, are not the source, they are Blade Encoded 40 K bit mp3 renditions of the original recordings of my voice. It would require an unreasonable amount of server space to hold simple voice dot wave files, and to standardize the master recordings as high bit rate mp3, in my view, violates the spirit, and perhaps, the letter of copyleft, since the ownership of mp3 is in dispute.

Ogg Vorbis to the rescue:
This page is at present far from complete, I intend to make higher bitrate Ogg Vorbis masters of these recordings, and make those available for download under the terms of the Design Science License, in the meantime if you want an early copy for distribution, or integration into your work, I advise strongly against this, but if you insist, I will do my best to accommodate your needs. If I receive a sizable amount of mail on this subject, I may simply divert my attention away from creating course material, to deal with this issue. That would likely not be in anyones interest, including yours.

When I make all of this available, the images will be dot png, and maybe some dot jpg files, but no dot gif files, again, violating the spirit, if not the letter, of the copyleft license, since both Unisys, and Compuserve, claim some ownership of the LZW compression inside the dot gif format.

Know then: The distribution version, is not likely to contain finished animated gifs, instead it will hold the original dot png files that I made for each frame of the movie, thus I am not placing encumbered files under the Design Science License. Indeed I intend to at some point revise this whole web page to remove any files that use non free data formats, after I find suitable free substitutes. That is why, there is at present, no mass download provision, as advertised in lesson "002 How best to use this course". I'm sorry if this inconveniences you, but there is a work around, acquire the program wget, or webget as it is sometimes referred to, disable the offsite branches of the tree, and download my whole course.


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Copyright © 2000 Jim Phillips