Page 1 of Hitachi (DVD DVP-305E) Help needed for Hack

I`ve managed to get the temp hack to work - but I can`t save it (either by changing Display to bright or by changing parental password)
Can anyone help ??? - Maybe my prob is that I have to stop the disc playing to enter dispay mode to change default brightness. Any help would be much appriciated.

I also have the same problem that the disc has to be stopped to enter the display mode and when you switch the machine off it goes back to original settings any help as well