Downloading All Maps

Hi,

I am currently looking at the 870 map collection and was wondering if it is possible to download all the maps and load them onto my GO 520.

If it is possible which maps would I download? For instance Europe has various different maps available.

Europe_1GB_West_870_3417 (~740MB)
Europe_2GB_870_3460 (~2,42GB)
Europe_870_3460 (~2,42GB)

Are these versions subsets of a larger map?
If so how do I know which is the main map?

This also applies to other areas (North America/United States)

Any help would be greatly appreciated

Generally, for an x20/x30/x40/x50 you should use an 870.3406 version (I can't currently find the "tweety" type compatibility chart or map chart but I'm sure the mods can edit this post if they know where to point you to)

Be aware that there are various "clone" maps so you would only ever need one of the clones-per-group maps

eg:
- Europe_870.3460
- Europe_2GB_870.3460

- Europe_870.3406
- Europe_2GB_870.3406
- WCE_870.3406
- WCE_2GB_870.3406

- Europe_870.3391
- Europe_2GB_870.3391
- WCE_870.3391
- WCE_2GB_870.3391

- Central_Europe_870.3406
- Europe_Central_870.3406

- Europe_870.3417
- Europe_2GB_870.3417
- WCE_2GB_870.3417
- WCE_870.3417

- Europe_870.3413
- WCE_870.3413

- Central_Europe_870.3417
- Europe_Central_870.3513
- Europe_Central_870.3514

- Europe_East_870.3513
- Europe_East_870.3514

- Europe_North_870.3513
- Europe_North_870.3514

- Europe_West_870.3513
- Europe_West_870.3514