Garmin NUVI 500 - Maps on memory card

[eaparks]

I am trying to find out for a friend who is getting a NUVI 500 if when maps are added to the micro sd memory card for a Garmin NUVI 500 how is the map file name recorded?

 

1. Is the map file on the memory card named gmapsupp.img?

 

2. If the answer to 1. is Yes; then can the gmapsupp.img file be renamed to Custommap.img and be recognized by the GPS, like on the Oregons?

 

3. Per Garmin it looks like a 16Gb memory card is the largest recommended, is this correct? Any additional information as to size or type of card would be appreciated?

 

I searched on Garmin's site in all the FAQs, Googled, and searched here on the forums but found nothing addressing this particular question.

 

Thank You.

[+Red90]

1. Yes, under the Garmin folder.

 

2. No. Colorados and Oregons only at this time AFAIK.

 

3. Yes, but a map file can only be 4 GB, due to the file system (FAT32) limitations, so there is not much point.

[eaparks]

Thanks Red90 for the quick reply.

 

Upon searching on the GPS Review.net forum I found where a software update for the NUVI 500 created 2 seperate gmapprom.img files: gmapprom.img and gmapprom1.img; 1 for CN maps and 1 for Topo after this update, instead of having both in gmapprom.img. So would a gmapprom2.img be recognized?