Garmin City Navigator North America NT 2015.10

**Neil** · 17th May 2014, 02:10 AM

Originally Posted by edusonbaty

C.N.A 2015.10 no even one problem with mapsource. Maps working just fine, searching by address and all other search modes are ALL OK!.
Im working with MS portable special edition 6.16.3.0

You have to be unlucky, but problems can and do occur with large modern CN gmap folders used in MS to compile images. The desktop App Developer FALAGAR posted somewhere in the official Garmin forum warning against using MS for that, saying that MapInsall and MapSource use different algorithims for compiling img files. You can easily see that yourself, there are slight differences in a .img done with MS compared to that from MI.

I can't find the link at the moment, but i know Caty posted it somewhere and she or someone else might be good enough to post it again.

**catymag** · 17th May 2014, 02:22 AM

Originally Posted by Neil

I can't find the link at the moment, but i know Caty posted it somewhere and she or someone else might be good enough to post it again.

Originally Posted by FALAGAR

It's fine to use MapSource if you want, but do so at your own risk. I want to point out that the image creation code in MapSource is very dated. It might or might not work properly on the device. They have been dozens of fixes since MapSource 6.16.3 was released.

MapInstall should also be faster in image creation and transfer (depending on the type of map and device) because of performance improvements we made. MapInstall supports nMaps (more than one supplemental map), without having to manually rename gmapsupp.img. So the official recommendation is to use MapInstall, not MapSource. If something is wrong with a map on a device (mainly with routing) and you created the image with MapSource, I'd try again with MapInstall to at least eliminate one possible point of failure.

Spoiler: source