If your proposed offline use of Google Maps or Google Earth is limited in scope, the concept of ‘fair use’ may apply
The video in high-resolution (720p HD) and the animation plays very smoothly but before I share the actual software that I used to record this movie clip, please read the guidelines for using content from Google Earth and Google Maps: This is a short video animation recording using the free version of Google Earth. Published in: Google Maps - Screencasting