"kony" wrote in message
...
On Thu, 12 Oct 2006 16:48:32 -0800, "Dana"
wrote:


You man there actually is something which will detect MP3 recorders?

There are devices that can detect when electronic devices are being used.
There are devices that can be made that can detect almost any known
material
If said mp3 player is made of that material it can be detected.



Which is not entirely applicable, since plenty of
non-recorders are made of circuit boards, ICs & other
discretes, and some plastic. Cell phone and pager are two
quite common ones.

And what is a common item to circuit boards, IC's, cell phones, pagers, MP3
players, etc.
There are devices made to detect the presence of semiconductors, and these
have been out for ages.
And now with the war on terror going on, you would not believe what kind of
sensors they are coming up with.
Minor modifications of some of these units would not be very difficult to
detect a mere MP3 in someones pocket.
But then these would not be cheap either, if you can even get one.


Detecting electronics devices in general, is it useful? We
dont know the exact scenario, what the result would be of a
positive detection but as above, cell phones and pagers
would tend to be caught and are going to be far more common
and innocuous than a recording device, though in the former
case, the phone may have recording capability too.