Please see:
Re: Installation Question
Postby Daniel at Steinberg » Wed Jul 27, 2016 5:12 pm
Good answer, Romantique Tp!Dorico will ship on two DVD-ROMs, but if you don’t have a DVD-ROM drive in your computer, you will be able to download the complete package from your MySteinberg account and install it from there. The total download size will be somewhere between 9GB and 12GB.
Thanks Bob