Re: TOC hack and also a firmware hack idea

Hmmm, that is an interesting idea, it might be at standard speed but
a digital out would be good. I'll take your idea of monitoring data
inside the box a bit further later.

I think if it is correct that the NVRAM is nothing but data, then the
only way to crack the USB link is to either rip apart OpenMG to give
up the encryption scheme, or to get the firmware.
As the latter seems impossible (burnt into DSP - see Pete's reply, etc)
I reckon it would take extreme measures, as were used to crack X-Box.
i.e. a belt sander, acid and a fucking good microscope.

However, if you can monitor, and understand, activity from the DSP to
the subsystems, particularly the drive controls, it might be possible
to 'chip' a NetMD so data from the USB gets sent to the subsystems
semi-direct to write discs... if raw TOC/ATRAC data can be created.
But this is ridiculous, even if this could be done, the replacement
chip would cost too much, be too big, not getting the case back on
would make it look like shit, and be too scary for mortals to do.

Maybe some nutter can build a PCI interface for personal delight!!

The parallel port idea is just a way to make a digital occilliscope.
The resistor to the monitored line would stop the measurement from
draining too much power so as to interfere with operation.
The 'hair trigger' transistor is to send a decent signal to the PC.
I saw something called sillyscope that i think used this technique.
Either that or it used the sound card!!

Adam


Christian Klukas wrote:
>>Whilst delving into my N707 I decided to pull it apart a bit further to
>>see this chip which turned out to be marked 17AM 2333.
> 
> 
> Good findings, I think perhaps all sort of these are programmed in a special
> way? So we could guess the needed USB commands?
> If not, this parallel-port idea might be interesting too.
> 
> Another interesting hack would be to get digital out. There is a pin that
> has the digital data. Unfortunately I have no such electrical skills, but
> perhaps someone can connect this somehow to some digital out port? 
> 
> chris