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  • 22:17, 2 January 2014 (diff | hist) . . (0). . m DVD(Capacity: Fixed the mess with SS/DS and SL/DL in the capacity table. Unfortuntely the main source "27 Cinram: DVD in Detail" is a dead link. On the other hand "28 DVD Demystifed FAQ" has a very similar table. One can use 28 to improve the table.)
  • 09:08, 10 July 2012 (diff | hist) . . (+30). . m Kepler orbit(fix the reference to equation (1))