Here you can download a mapsource version that you dont have to install:
http://www.gps-expert.nl/delen/software/garmin/mapsource/MapSource_6.16.3-concurrent_EN.zip
Just unpack it somewhere and execute it.
Problem solved, using the OpenStreetMap Windows files you suggested, and transferring them to the Etrex Legend H using another Garmin program called Mapinstall. Mapinstall allowed me to see the individual tiles in Basecamp, group them and download to the Etrex. l read that Mapinstall was supposed to be part of Basecamp, but I couldn’t find it and downloaded it separately.
The Mapsource files are not as good quality as the original Mapsource files I have on disc, nor to the OpenStreetMap files.
Thanks for your help!
Dear Lambertus,
thank you very much for this project. Currently I’m on a trip through Asia and after one year on the road, I would have one request, which I think would improve the maps a bit:
For whatever reason, the powerlines are shown. I have no idea why this data is included, for navigation purposes I think it is pretty useless or even worse irritating. But it would be amazing, if you could replace them with the railway data. Sometimes this helps to find a place by browsing a map or explain, why it will not be possible to take a shortcut somewhere (or why a road seem to be placed totally unlogical). This data is missing, so it would be great if this could get switched.
Greetings,
MArtin
Hi Martin,
I would recommend the generic new style maps, where the powerlines are removed. The railway network should be visible, if that is not the case, it is not in the osm data.
Hi. I’m probably being really dumb, but I’m never getting the field in which to enter my email address in the “Request your map or download it directly” area after I’ve selected the tiles I’m interested in. Have tried on Chrome and IE. Is there a problem with the web page, or am I missing something?
How big is your selection of tiles, if it is >4 Gb then you get a message “Selected map is too large!” and the e-mail address field will not be available.
The field is only shown when you activate manual tile selection and have at least one tile selected.
There appears to be a bug currently in the JavaScript code behind the interface. When you have a valid selection, it does try to reveal the email fields but the code that is actually revealing the email field is causing an error.
Please report those errors directly to Lambertus, he won’t read this forum often.
What’s the best way to get in touch with him? Private message here?
Also, the site is working again. I think the problem was related to the map rendering servers being offline. I tracked down the error in the JS to trying to find something in a list of servers. Today, I see that they are online, so since it has a list of servers to look at, it worked itself out. 
Good to hear that the issue is solved already.
Hi,
I am trying to get Kazakhstan map. On the map preview all names are (correctly) in Cyrillic. I downloaded proper *.img file but it shows all names (cities and streets) in latin (English) instead of cyrylic on Garmin device. Is this Garmin (dezl 770) issue or the *.img files are defined English naming only?
The img files are only compiled in latin/english.
Hi there; I really love this service and greatly appreciate it. It’s helped me get mountain biking trails that I’ve mapped easily on to my Garmin.
I’d like to experiment on my own with mkgmap and some different rendering styles, and I was wondering if the style sheets are available.
I’ve found this (https://github.com/ligfietser/mkgmap-style-sheets), but it’s not quite clear to me if those are the same?
Thanks very much!
Steve
Yes, the generic new style and openfietsmap lite you can find here: https://github.com/ligfietser/mkgmap-style-sheets/tree/master/styles
The generic uses uses the built in mkgmap default style.
Hello, After selecting tiles on OSM for Garmin, the email box is not appearing. Is this a technical issue? Tried on different computers and with Chrome and Firefox. Never had this problem before.
Maybe this has to do with the custom map generation?
Server status:
osm.pleiades.uni-wuppertal.de/garmin/, queue = 0 requests (~0 days), status = OK
osm2.pleiades.uni-wuppertal.de/garmin/ not available!
The same problem has been reported here: https://help.openstreetmap.org/questions/55389/request-your-map-or-download-it-directly-not-available
Please contact Lambertus:
I am also experiencing this issue. I’ll swing an email to Lambertus (I take it he’s the creator?) and see if he can help!
Here’s to it getting fixed soon!