Convert to SOU Online Tool.
The SOU files that are available are directly associated with games put out by the Lucas Arts company. In other words, you are going to find these unique SOU files in the Star Wars franchise of games. This is because the sound effects that are used in these games are incredibly unique, and the company felt that they needed to have their own special types of files in order to make them work just the way they wanted them too. Naturally, this is something that you might be interested in because it is so unique to a specific franchise of games. Just remember that SOU files are directly associated with those games, and they are not necessarily going to be common to see virtually anywhere else.