How can I see what version of software is installed in my psr9000 pro.
What is the latest version ?

Thanks,
Alain

Alain. Robby's Web Site has some excellent pdf files to download both in German & English which instructs you many things about the Yamaha 9000 \ 9000Pro that the manual does not tell you.
http://home.a-city.de/robert.mueller/pdf-E.html

Graham UK

Thanks Graham ....very interesting site.
I just ordered the usb interface for the harddisk from Musictronics.
I hope I will succeed in installing it....I am not very technical.....Are maybe members who installed this and can give me some tips.
I also ordered the expansion boards
PLG150-VL.
Greetings,
Alain

Alain.....Regarding finding which OS your 9000PRO has.

Select FUNCTION Button. (Just right of Flash Styles)
Select UTLITIES ( Right side of screen)
Select SYTEM INFO (Left side of screen)

Graham UK