The record button is used to delete items in your recordings list.
You can also press "R" on the TV guide which will show you a list of options.
@DarrenDev thanks Darren I assume anyone of these options would stop the recording playback and take me to that point if I wanted to resume at a later date. I expect I would have discovered this myself by playing around but your help is appreciated and easier. Thanks again.
Lack of close button is irritating. Would be great if it could be programmed so holding down the back button acts as the close button