Hello.Shrink audio question - I am trying to backup a movie called "Hard". Within Shrink, it shows the following info under the Audio section. My question is do I need each of these or can I just use (1) of the 2-ch English to save more space for the main title. Also, I've noticed that many movies include both the 2-ch and the 5.1-ch settings. Do I need both or can I uncheck one of these settings to save space for the main title. Does anyone know what the "Unspecified" one is or if it is even needed?1. AC3 2-ch Unspecified 39 MB2. AC3 2-ch English 141 MB3. AC3 2-ch English 141 MB4. AC3 2-ch English 141 MB