I am producing a slide show about 6 minutes in length and would like to play the slide show continuously i.e. once strarted the slideshow returns to the first slide again in a loop. I can do this in Microsoft Powerpoint but not all my clients have powerpoint.
Depending on which version you have, I have 2013, see page 131 of the manual under the Burn Interface, menu entry properties, right hand side - action at the end of the film, select "Play slideshow as an endless loop."
I recommend that you read the rest of the instructions under burning and menu making.