The second word sounds to me like /tsu-o-mi/, not /su-o-mi/. The first 'Suomi' definitely has an /s/, not a /ts/, but the second one is /ts/, no question about it. The third one is kind of halfway in between. Is this a common thing in Finnish, i.e. pronouncing S as /ts/ instead of /s/? If so, is it only with word-initial esses, or does it occur otherwise, too?