Why can't MATLAB read my modified HDF5/.mat v7.3 file?

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janolivero
janolivero on 24 Mar 2016
From version 7.3, the .mat file format is supposed to be in binary HDF5 format, and should allow processing by the standard HDF5 tools that are around. I am trying to modify a .mat file using python library h5py. (I delete a dataset from the .mat file and recreate it with an additional dimension). If I try to open the modified file in MATLAB, I am getting a segmentation fault.
Is MATLAB really using standard HDF5 format, or does it require any hidden metadata, that I don't know of?

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