I tried all my dv files. It works great with my dv (PAL and NTSC, regular or DVCPRO, even the dv from ffmpegX). Except for the DVCPRO50 that it don't manage to encode with the 1st pass, I must use the "pré-export option" (but who cares of this format ;-)).
No problem with this soft and ...easy to use and for free !
Thanks

Could be perfect if it says to me when a dv file must be pre-export first.