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Storing data in the DVD Player

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Raul Dias
Storing data in the DVD Player
on Mar 2, 2009 at 12:45:23 pm

I have seen this in the past with simple dvd-video games.

How do I store a value in the DVD Player that can survive reboot/disc change?

AFAIK, GPRMs wont survive, but what about SPRMs? is there any that could be used for this (e.g. reserved one)?

Even that another disc/program could overwrite this, and this is not in the specification and will not work on every DVD Player, what gets closer?

-Raul


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eric pautsch
Re: Storing data in the DVD Player
on Mar 2, 2009 at 4:07:02 pm

Once a player re-boots or a disc is removed, all GPRMs are zeroed and certain SPRM are set back to their default settings. Never heard of a player saving values - that would be cool though.



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Raul Dias
Re: Storing data in the DVD Player
on Mar 2, 2009 at 4:43:24 pm

I have seen 2 cases:

- a high score in a simple dvd game.

- a play once dvd

The play once dvd sets a flag somewhere after you finished watching it (5min clip). In this case it survived in a reboot.

In the game case, I dont really remember if a reset was done. But it did survive between changing a few discs and comming back to the game again.

So, If anyone has a clue about this... :)



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