Raster charts for waters of Brazil (including the coast of South America from Caribbean down, as well as rivers) are available free at the following link: https://www.mar.mil.br/dhn/chm/cartas/download/cartasbsb/ . These charts are in BSBv3 format and are fully compatible with PolarView.
If you prefer to download these charts as a single archive, pick up a file here . This file was created on May 25, 2011 – follow updates on source page as necessary.
Thanks to a user for a “heads up” on this information!