Review on Discover the Power of Magellan MapSend Streets CD for Map 330 by Nicole Bryant

The problem with this product is that you are limited to downloading four 16MB areas totaling 64MB to the SD card. You cannot upload a 64MB region. If you are touring a large part of the country or going on a longer trip, consider breaking it up into parts. It's a shame that Magellan has limited its software expansion options when larger SD cards become available. This stopped me from upgrading my existing portable GPS. These devices are not really infinitely expandable as advertised.