For tons of old pictures, Large and medium format are gone.
Even if not updated pictures since SPV2 are less than 650 pixels wide or long,
don't forget that lots of old pictures could have been updated in wider formats...That are lost now.
Vertical picture are appearing now as a small cutoff of the fullformat: example http://www.summitpost.org/pointe-de-rome/19015/c-348974
Could you reload these intermediate formats or have some data been lost ?