[CZT-Users] CZT font on Mac OS X - "system validation" error

[Russell T. <rus...@me...>]

I am trying to install CZT_ 1_5_0.ttf on Mac OS X Yosemite 10.10.5 and I get
a ³serious² error: ³system validation².  How can this be fixed?

I have tried to save the font as .otf using the utility Typelight, and also
renaming the font, but neither fix the problem.

Thanks,

Russ Thomas