Re: CD Burner questions

On Wed, 7 Sep 2005 16:39:07 +0100, Adrian Tuddenham <poppy.uk@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:

James Perrett <James.Perrett@xxxxxxxxxxxxxxx> wrote:


Do you know who really makes the HHB discs? They used to be made by Mitsui ... 

I have heard tell that they have one factory in the US and another in
the Far East.  I would imagine it would be possible to tell which
factory made the disc if you could crack the code printed in the centre
void.

There's actually a code recorded on the disc that will tell you who made the disc (or more accurately, who made the stamper). You can use various software programs to read the code and decode it into something understandable. Older HHB's came up as Mitsui's but I've not had any of the newer ones to test since Mitsui re-structured their operations.

Thanks also for the circuit description - I might just try hooking an oscilloscope up to an old CD player to start with but your circuit gives me a few ideas if I want to build something more self contained.

Cheers.

James.

.

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