The 2009 Rosetta Stone English American Version is a comprehensive language course software that includes 3 levels (1, 2, 3) and a total of 5 units. Developed by Rosetta Stone, this program provides users with a comprehensive and immersive experience to learn English as a second language. With its focus on language courses, this software offers a structured and interactive approach to language learning, making it ideal for individuals looking to improve their English skills in a convenient and effective manner.