You will typically need a Double Layer (DL) DVD for a direct disk update, or an 8GB+ SD card combined with a CD-R if using the SD-to-HDD transfer tool. How to Update Your RNS 510 Maps
Germany, Austria, Switzerland, Poland, Czech Republic, Slovakia, Hungary, Denmark, Finland, Norway, Sweden, Italy, San Marino, and Vatican City. rns 510 maps east europe
The RNS 510 East Europe map package provides detailed road information for a wide range of countries, though some may have partial coverage: You will typically need a Double Layer (DL)