Hi Bill,
I have tried to download the Hipparcos update from
ftp://cdsarc.u-strasbg.fr/pub/cats/I/311, but I haven't found this
directory. The following is I/312: PPMX Catalog of positions and
proper motions (Roeser+ 2008). I have downloaded all the files, they
can work with guide?

-- Dario