Map sizes - advice required

[Bob]

Good evening GPS gurus out there

Having just purchased a Garmin 2610 and upgraded to the new City Navigator v7 (well done Garmin took just a couple of days turnaround) I have followed with interest the discussion on upgrading the supplied 256Mb Compact Flash (CF) with a 1Gb or even 2Gb CF card.

I read somewhere on the web (can't remember the url) today that someone had put the whole of the UK, Ireland and parts of Northern France on a 256Mb card.

I've looked at the combined size of these "maps" and they are far larger than the 256Mb available (around 330Mb) - never mind routes and waypoint data etc. SO, how is it done; much less detail than the highest setting? Do they copy the maps direct from the files themselves (by drag and drop onto the CF card or transfer them using the Mapsource application software?

If look at the total file size (with .img extentions) for City Navigator v7 then this comes to a massive 1.42Gb, without any other data.

So how is this done without sacrificing map detail / quality ????

Regards

Bob

 

[TerryM]

Truncated??????????

Reading of the manual appendix"Messages" will confirm that if the memory capacity is exceeded then the beast will truncate the data. So we will not have loaded that which we thought and a message to this effect will be displayed. I think that the oldest(earliest)data is deleted.

I have a feeling that someone had this happen a week or so ago and think that it was either GSmonkey or Wraithwrider??

 

[simonm]

Good evening GPS gurus out there



I read somewhere on the web (can't remember the url) today that someone had put the whole of the UK, Ireland and parts of Northern France on a 256Mb card.

Don't claim to bea guru but I'll have a go....

City Navigator 7 is pretty new. There is more data - that is new areas added and more data about existing areas. My guess is the info you saw was related to an earlier version of City Nav or even related to City Select.
Given that CF cards are so cheap these days a 2GB card would be the way to go.