To play the torture test examples, please download the FLAC files you're interested in from: http://mpxtool.com/site/torture-test.html Place the flac files in the flac folder. To assign the audio processors you want to audition to the appropriate button in MpxTool, please edit the dmpx/meta/00index file with notepad. Finally, double-click on any of the dmpx files in the dmpx folder to open in MpxTool and play! The DMPX file format has recently changed - make sure you have the latest version of MpxTool installed.