I’m pleased to announce that I’m now able to delete a recording on my Humax Aura … since following your speedy and accurate advice post. Many thanks to both of you for taking the trouble to answer my question … very much appreciated.
Highlight the recording you want to delete and press Red button and confirm, if you are asked for password it is 0000 (four zero’s)
Edit: Graham beat me to it
The Aura asks for a password to delete on G (Guidance) rated programs even when parental guidance settings are not active, however, you can watch the program without a password. I have reported this bug to Humax.