The ID100 folio covers Puerto Rico, the Virgin, Leeward and Windward Islands, plus Barbados and Tobago. The charts included are: A, A2, A23, A231, A232, A3, A4, A24, A25, A26, A27, A271, A28, A281, A29, A30, A301, B, B1, B2, B3, B30, B31, B311, B32, B4, B5, B6. Imray Digital Charts feature: High resolution images of Imray charts. Full chart plotting software allows route planning using waypoints interfaced with GPS. Clear and simple functionality. Chart notes, warnings and tidal diamonds displayed as text boxes. Downloadable corrections. Interface with AIS. Registration available on a maximum of 2 computers. On-line registration. USB Stick Format