Multilingualbooks today announced another addition to it’s “On The Go” series of language-learning products in digital format. The “On The Go” series features high-quality language-learning, available either ready to load onto your own player or preloaded onto iPods (30GB). The “On The Go” series is currently available for Mandarin Chinese, Spanish, French, Arabic and many other languages. All of the courses in this series were digitally remastered for better sound clarity and come with the text of the course in PDF format. The Mandarin Chinese Foreign Service course is the latest offering in the series. The entire course includes over 1,000 pages of text and 70 hours of audio, with the entire course priced at US$399, or level one for $95.