Press the green flag and have a bit patience, its worth it. YES, IT REALLY NEEDS TO LOAD SOMETHING. The next Version doesnt even use imported audio: https://scratch.mit.edu/projects/72880262/ (Pokemon intro in pen and noteblocks). The source (java) of the conversion program can be found here: https://drive.google.com/open?id=0B__W5FKtKxa6d2d1OU13TVNwWjg You can ask for help, however I will only answer specific questens. Also note that it is quite messy and undocumented, so you should be an advanced coder to be able to work with it.
I put my own video of my cat.