@spwolf:
it is exactly what I said. They added their own formats to zip specifications to make everyone else incompatible.
It is as if 7zip wasnt 7z, but author adding lzma compression to zip format. Would that be fine? I dont think so.
p.s. isnt there also sound compression format in WZ as well? :-)
Well actually, the zip specification does allow LZMA as a compression method just like it allows PPMd.
It’s called progress.
All the compression methods are documented and there is nothing stopping you from supporting them. Unless, of course the 3rd party compression engine that you are using, makes this difficult. It’s a competitive world out there, and unless you are happy with the proprietary WinRar format (PPMd based) becoming a standard, then you will have to get used to newer and better compression methods for zip emerging now and again.
At least they are free to implement!
