mapinstall and mapsource maps to oregon 550 error

[marindukenyo]

i am trying to load a 24mb map file to my Oregon 550 specifically its 8gig sd card.  so far, the sd card garmin folder contains only 400mb of map files, way below the 2gig limit. yet i get this message every time i try. 

same results using mapsource or mapinstall

is there a runaround to this issue?  help, it's frustrating

[Seldom]

Is it a map from this site?  You'll probably need to contact the map author.  That error occurs when a TDB file hasn't been correctly compiled.