Many teachers are looking for short audio recordings to train their students to oral comprehension. There is a lot of material available online. On eTeachNet, our colleague Annie Gwynn, a teacher for STG classes, recommends this interview of a marine who doesn't like war. It is short, easy and clear : a good starting point for students who feel they can't understand anything English.
Remember to prepare different worksheets for people of different level, so that the weakest can spend time trying to understand the basics while more advanced students can prepare a comment/analysis on how he feels and why.
http://e-poche.net/conversations/?p=27