Unfortunately it is no longer possible for us to license our Blu-Ray players with ISO file playback. This licensing change applies retrospectively and as such, as well as removing this format from new players, we have had to remove it from units that have already been sold. This is the first time that we have ever had to do this and we are aware that it may be frustrating for people who have been using this feature prior to this software release. Please be assured that we did not take this decision lightly.
As this is a change brought about by licensing requirements we cannot supply the old firmware and any future firmware updates will continue to have this feature removed.
This also applies to the 752BD.