wrote in message
oups.com...
When I erase the tracks on my Raymarine GPS, is the data really
destroyed? Or can it be recovered like the deleted files on a computer
hard drive?

They are gone. Technically speaking, they probably get marked "deleted"
until the entire memory needs a bulk erase. When this is happening, you
cannot tell. Only Ray could. Further to the comparison with a computer: to
restore files on a computer, you can install a utility to do that. On a GPS
however, such a mechanism does not exist. You cold disassemble the units,
de-solder the flash chip and read it with a programmer, but that would
involve more cost than the price of the GPS.....

So in short, the answer is no.

Meindert