Unfortunately for Apple, many media companies have been joining forces to exert some control over digital media standards.

Present and former Sun executives give evidence to the inquiry into phone hacking and media standards.

This was a big disadvantage when any of the media standards were changed.

Cameron says the Leveson inquiry will look at media standards.

Inquiry into phone hacking and media standards will not start hearing evidence from witnesses until November.

Lord Justice Leveson during the phone hacking and media standards inquiry.

He said that the media must never give the terrorists a tribune or help them acquire operational information, and double media standards are intolerable.

On the inquiry, Cameron says there needs to be a review of what happened, and a look at media standards.

One part of it will look at media standards.

- David Cameron has launched a wide-ranging inquiry into media standards.