Morning all,
I have had my Alphard since May and have had a lot of enjoyment driving it
I was offered the option to change the head unit, which is the NHDT-W57, when I brought the Alphard, but as everything was working, including the repeater screen and the remote control for it, elected to keep the unit and brought a Garmin DriveSmart 61 voice command Sat Nav for navigation and hands free operation.
As i found out quickly, the DVD player works fine with UK region DVDs, so decided to create my own. I have a load of pop music videos, so went to burn my own. I found that the DVD burner programs i had would not create a DVD that the Head Unit would recognise.
I eventually found a program called DVD Styler, a free, Opensource program ( https://www.fosshub.com/DVDStyler.html ) that does the job just fine and have burnt many DVDs for use in the Alphard.
Hope this helps anyone in the same boat.
Steve.