

You should be able to unilaterally unzip all files and then re-compress them if the zips are in one folder, however, if you have the folders separated by disc number, then it becomes exponentially more difficult. You can't use "MAXIMUM" you have to use the default settings (I think it is a 5 out of 10) The problem that you are experiencing IS the compression ratio you use. My blog outlines the proper way (free) for zipping karaoke files.
