Sees the release of new Mie routines which allow a more robust treatment of anisotropic crystals. A few other issues have also been addressed. The mass and volume fractions can be edited more easily. The spreadsheet is now written out at the end of the calculation (on exiting the program). There are several changes to the fitter tab. All the options are now in their own settings tab, which gives more space for listing the frequencies. A new fitting algorithm has been provided, which minimises the root means squared error between the experimental and calculated spectra.