Legend Soundsets for Mac .iso won't open to install

[gmhopkins]

Double-clicking The Legend Soundsets.iso won't open the file. When I open Apple's Disk Utility, it shows that the .iso file is mounted.
Does anyone know why it won't open? I have restarted, and re-downloaded several times.

[Marcin]

Once you double click on the .iso file and nothing happened, please go to the Finder and look at the left panel containing mounted disk list. There should be the "Legend Soundsets" disk mounted. Click on it and the installer should be there.

[gmhopkins]

Perfect!