Marble isn't able to read foreign map formats as from DVD provided maps from different services like: - German "Landesvermessungsamt" - Swiss Map from "Swiss Topo" - Interactive Maps Would be nice to have a program on Linux being able to read most of these maps available on DVD. As far as I know there is no such thing available at the moment. Maybe it could be done by plugins programmable by third parties to do that. Could be interesting for these commercial parties to provide them …