Marines can now access free Rosetta Stone software through MarineNet. The program, which normally costs up to $200 through Rosetta Stone's retail Web site, is a 150-hour, web-based program designed to give Marines a quick education in 31 different languages. - Marines can now access free Rosetta Stone software through MarineNet. The program, which normally costs up to $200 through Rosetta Stone's retail Web site, is a 150-hour, web-based program designed to give Marines a quick education in 31 different languages.