Quote:
Originally Posted by wallcraft
I don't see how it could be considered an effective DRM technique. Compression is also highly unlikely to be covered by patents, and in any case all that is required is decompression. This is somewhat analogous to the case with RAR, where there is an open source unrar utility but not one for creating .rar files.
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RAR author Eugene Rorshal released public domain C code to open and extract RAR archives back in the MS-DOS days, so lots of things can
open RAR files.
Mobi's high compression option Isn't intended to be DRM, per se. The purpose is for things like dictionaries. They need high compression to keep the file size within reason, but they can't use Zip because they need to be able to uncompress the file for display at any point in the file, and Zip starts at the beginning.
So they have a proprietary and undocumented compression method they developed to handle that requirement.
Since they made the Creator and Reader programs freeware, I think the next logical step for them would be to make them open source and get other developers involved, but I think the proprietary compression method would be an obstacle.
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Dennis