Dear All, I am trying to transfer GROMACS trajectory files (.trr and .xtc) from a remote computer to my machine via FTP. Because of the size of these files, I cannot transfer them in one go - I need to break them into smaller pieces and transfer these individually. Is there a clever way of doing this ? If I break the tranjectories up into smaller pieces which correspond to a parts of the trajectory, transfer them and then join them, will I get one file which is identical to my original & intact trajectory ? Do I not lose some information (e.g. at the borderline between pieces) by cutting the trajectory into pieces ? Does this work for both .xtc and .trr files ? I would ber grateful for any advice you could give me ! Best wishes, Chris ------------------------------------------- Christoph Meier Membrane Protein Simulation Group Laboratory of Molecular Biophysics Department of Biochemistry University of Oxford South Parks Road Oxford OX1 3BW U.K. -------------------------------------------