I must be doing something wrong. I downloaded the trial version for Neoscene to convert my 5DII files that where shot at 25 fps. The files turned out fine except for the undersample rate comming out at 24,975 fps instead of 25 fps. That gives me all kinds of sync issues with my JVC HM-100 footage I wanted to intercut with. It works when I change the playback rate to 1.001 - but there must be a better solution... I´m on a PC, btw, using Sony Vegas 8c. Thanks to everybody who can point me into the right direction.

Likely the result of the 5D firmware upgrade. Could you please send support a short source MOV at 25p so we where the conversion is at the wrong frame rate. We only have a T2i and a 7D at the office.