Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Limited Region Availability

The problem with this product is you are limited to loading four 16MB reqions totaling 64 MB on the SD card. You can not load one 64 MB region. If you travel a large portion of the country or go on a long rad trip, you have to break it up into sections. It is a shame that Magellan has limited the expandability of their software when large SD cards are available. This has kept me from updating my existing handheld GPS. These devices are not truely infinitely expandable as advertised.