No, we do not recommend storing new products in HDF4. You should use HDF5 instead. We also want to encourage and help users move from HDF4 to HDF5. Please let us know if you need help with this.

HDF4 still works well for many users, and we are pleased that it has served users so well. However, there are good reasons to use or move to HDF5.

In general, HDF4 is based on technology from the 1980's and 1990's. Some specific reasons to use HDF5 instead of HDF4 are listed below: