I can help you all out.
I have the 2730, I used it in San Diego (NA) & have now moved to Italy (Europe)
The 2730 does not come with any CD/DVD maps at all. They are all pre-loaded to the 2GB internal flash memory.
If you call or email Garmin the general rule seems to be they will send you a DVD of the latest maps for free (US only)
I bought mine last May, Garmin sent me the NA version 7 DVD in June when I asked, in Sept they came out with version 8 upgrade which they just sent me a few weeks ago (again for free). You just need to fill out the free upgrade request in your “mygarmin” account webpage.
The 2730 when attached to your pc can work in two modes, GPS or USB storage mode.
In USB storage mode you can actually see the 2GB internal hard drive as a drive letter on your PC.
From the factory it should have about 1GB free, the rest are the STD maps, a few mp3 files and the default voices in various languages.
Continue at your own risk (standard disclaimer
)
Relax, we are not doing any surgery or soldering to your GPS but if for some reason your GPS no longer works.
Don’t blame me.
What I do to make a bunch of extra space is backup the standard USA/NA map image ~950MB file and all other files to a DVD
This leaves the 2730 with the full 2GB for you to do whatever you want, BUT with no useable maps.
Let's say you really never leave the state of (fill in the blank) or never travel east/west of (fill in the blank)
Do you really need the entire USA taking up space which could be used for tunes (i.e. MP3's)?
By default the 2730 ships with 3 basic folders on the 2GB flash drive.
Going by memory here as I am at work right now (bear with me if I'm off a bit)
-audible
-mp3
-Garmin
audible (books), mp3 (music), Garmin (maps)
Inside the Garmin folder is also the voices folder for the GPS (if all you speak or need is English, backup & delete the other 15 or so languages for more added space)
To add maps, either USA or Europe to your 2730 you need the appropriate region DVD installed & the Mapsource program.
Select the maps you want in Mapsource, with the 2730 you should also check the box for routing data since the 2730 has routing capability.
Click the icon to send to GPS.
Here is what actually happens behind the scenes:
The Mapsource program takes all of your selected maps and makes an image file, let's just call it a container (one single file) that holds all of your selected maps. The 2730 uses this one file to access the maps of the desired region.
A few more wrenches to throw in the joy of GPS use is the 2730 requires the maps to be unlocked.
Be careful buying used/pre-owned maps off of ebay.
Each map program can be unlocked for 2 devices (that you personally own) after that Garmin will want more $$
If you can't unlock it because of >2 device unlocks, invalid code, seller fails to give you a code, etc... you are out of luck.
I bought my brand new copy of
City Navigator Europe v9 for ~$220
here
For me right now, I have a complete factory backup of my 2730 safely on a home burned DVD-R (USA load)
I deleted everything except the English voices leaving me 2GB to load my maps and quite a few mp3's
I loaded just the regions of Europe I need, I don't want or need all of it.
When I head back to the states I will do the same (delete the Europe maps, load the parts of the US I want/need)
I hope that helps you guys out with a few of those questions.
If not, let's keep asking and bring all of us up to speed on some of this GPS technology.