[mhendu]

did not see a NFO with multiple certifications yet? even die Kodi wiki does not mention multiple certifications.
tmm is designed with the kodi specifications in mind - thus we only have certifications for the chosen country

 Here's an example of the output from Ember (for The Girl with the Dragon Tattoo). I can use this information via a plugin to password protect movies that are not appropriate for her:

  <mpaa>Argentina:18 / Australia:MA15+ / Brazil:16 / Canada:13+ / Canada:16+ / Canada:18A / Finland:K-15 / France:12 / Germany:16 / Hong Kong:III / IndiaBanned) / Ireland:18 / Italy:VM14 / Japan:R15+ / Japan:R18+ / Mexico:B15 / Netherlands:16 / New Zealand:R16 / Norway:15 / Philippines:R-18 / Portugal:M/16 / Russia:18+ / Singapore:R21 / South Korea:18 / Sweden:15 / Switzerland:16 / UK:18 / USA:R</mpaa>
  <certification>Argentina:18</certification>
  <certification>Australia:MA15+</certification>
  <certification>Brazil:16</certification>
  <certification>Canada:13+</certification>
  <certification>Canada:16+</certification>
  <certification>Canada:18A</certification>
  <certification>Finland:K-15</certification>
  <certification>France:12</certification>
  <certification>Germany:16</certification>
  <certification>Hong Kong:III</certification>
  <certification>IndiaBanned)</certification>
  <certification>Ireland:18</certification>
  <certification>Italy:VM14</certification>
  <certification>Japan:R15+</certification>
  <certification>Japan:R18+</certification>
  <certification>Mexico:B15</certification>
  <certification>Netherlands:16</certification>
  <certification>New Zealand:R16</certification>
  <certification>Norway:15</certification>
  <certification>Philippines:R-18</certification>
  <certification>Portugal:M/16</certification>
  <certification>Russia:18+</certification>
  <certification>Singapore:R21</certification>
  <certification>South Korea:18</certification>
  <certification>Sweden:15</certification>
  <certification>Switzerland:16</certification>
  <certification>UK:18</certification>
  <certification>USA:R</certification>

Here's an example from the Gaspar Noe film Irreversible. It is not rated in the US, so TMM would assign I think NR as the rating if my country setting is the US. Ember picks up that in other countries this is usually rated 18+, so I can use a plugin to password protect this movie so my daughter wouldn't be able to select it:

  <mpaa>Argentina:18 / Australia:R18+ / Austria:18 / Brazil:18 / Canada:18+ / Canada:R / Czech Republic:15 / Denmark:15 / Finland:K-18 / France:16 / Germany:18 / Greece:K-17 / Hong Kong:III / Hungary:18 / Iceland:16 / Ireland:18 / Italy:VM18 / Japan:R-18 / MalaysiaBanned) / Mexico:C / Netherlands:16 / New Zealand:R18 / Norway:18 / Peru:18 / Philippines:R-18 / Portugal:M/18 / Singapore:R(A) / Singapore:R21 / South Korea:18 / Spain:18 / Sweden:15 / Sweden:18 / UK:18 / USA:Not Rated</mpaa>
  <certification>Argentina:18</certification>
  <certification>Australia:R18+</certification>
  <certification>Austria:18</certification>
  <certification>Brazil:18</certification>
  <certification>Canada:18+</certification>
  <certification>Canada:R</certification>
  <certification>Czech Republic:15</certification>
  <certification>Denmark:15</certification>
  <certification>Finland:K-18</certification>
  <certification>France:16</certification>
  <certification>Germany:18</certification>
  <certification>Greece:K-17</certification>
  <certification>Hong Kong:III</certification>
  <certification>Hungary:18</certification>
  <certification>Iceland:16</certification>
  <certification>Ireland:18</certification>
  <certification>Italy:VM18</certification>
  <certification>Japan:R-18</certification>
  <certification>MalaysiaBanned)</certification>
  <certification>Mexico:C</certification>
  <certification>Netherlands:16</certification>
  <certification>New Zealand:R18</certification>
  <certification>Norway:18</certification>
  <certification>Peru:18</certification>
  <certification>Philippines:R-18</certification>
  <certification>Portugal:M/18</certification>
  <certification>Singapore:R(A)</certification>
  <certification>Singapore:R21</certification>
  <certification>South Korea:18</certification>
  <certification>Spain:18</certification>
  <certification>Sweden:15</certification>
  <certification>Sweden:18</certification>
  <certification>UK:18</certification>
  <certification>USA:Not Rated</certification>

One last example - an early Disney cartoon called The Band Concert. Unrated in most countries, but not objectionable and I'd allow my daughter to watch it unsupervised. Ember picks up that it is rated for kids in Argentina, Germany and Spain, so I can use this info to make the short film available to her:

  <mpaa>Argentina:Atp / Germany:0 / Spain:T</mpaa>
  <certification>Argentina:Atp</certification>
  <certification>Germany:0</certification>
  <certification>Spain:T</certification>

I gather that the 'certification' tags are actually deprecated - I don't see these in the database anywhere - but the mpaa tag could include all the certifications.