Re: Gpx files without time records?

On Oct 18, 10:11 pm, Harald Hanche-Olsen <han...@xxxxxxxxxxxx> wrote:
+ Jack Erbes <jacker...@xxxxxxxxxxxx>:

The preloaded cards have map files that are unlocked to the microSD
cards unique serial number, that is how they prevent people from
making copies of them. So that map image file will not work on any
other card.

I have one of those preloaded cards. When the file system on the card
got trashed for some reason, I just reformatted it and copied back the
map files, that I had prudently copied to disk. The maps worked fine
afterwards. From this I conclude that there is no other magic to this
locking business than having the correct serial number on the card,
and having the requisite files on it. It appears that one file is the
actual map data, while another small file contains the key data needed
to unlock the map. There was also a directory full of voice data that
I didn't bother to copy back, since my device doesn't do voice.


I'll play with my new empty card in this manner. Tks for idea.
Palo.

.

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