Some people can sit through software learning programs and others can't. I'd recommend
this series of books (levels I, II and III) as an alternative. They will put you further along than Rosetta Stone at a fraction of the cost. There are many podcasts out there for Japanese learners to improve listening and speaking skills also . . . for free.
Good luck with whatever program you choose. After a while, you might be able to tune the Japanese vox channel.
Don't expect to understand too much though. All languages are filled with idioms and slang based on local movies, TV, music, etc.