Arno Pro Opticals: Display vs 36, regular vs 10, etc.

Adobe says Arno Pro comes in 5 optical weights: Caption, Small Text, Regular,
Subhead, and Dispplay. But, why are there more fonts insalled than that with the
CS3 Suite? I see in the Finder asnd in the InDesign type menu names like:
ArnoPro-BoldItalic08pt.otf, ArnoPro-BoldItalic10pt.otf,
ArnoPro-BoldItalic12pt.otf, ArnoPro-BoldItalic18pt.otf, and
ArnoPro-BoldItalic36pt.otf.

My first thought was that Bold Italic 36 must be the same as Bold Italic
Display. But, Bold Italic 36 weighs in ar 580 KB while Bold Italic Display
weight in at 452 KB. And, if these were the same, why would Abobe provide
multplpe versions of the same font. As I said, these are distinct files found in
the Finder.

Bob,

To me it appears that the specific font size info corresponds neatly with
Caption, Small Text, Regular, Subhead, and Display.

Of course, you can set any font in any size, whether or not it is optimized for
such use. But if I were setting 36 and larger, I'd be using the
"Display" version, which is optimized for larger sizes. And I'd use
"Subhead" for settings of 18-36 pt., "Regular" for 12-18
pt., etc. It harkens back to the old days of hand cutting each letter for each
font size, optimizing the appearance for that size. If you were to set the same
phrase at, say, 36 pt. in each of the five flavors, these differences of shape,
proportion, weight, x-height, serifs (as appropriate), and other optical
corrections become apparent.

I hope this helps.

The numbered versions are from a pre-release build of Arno Pro. You might have
it if you installed the Photoshop CS3 public beta. These are superseded by the
"named" versions. You should delete the numbered ones.

T,

Do the "named" versions come with the final release of Photoshop CS3
too? Would the CS3 beta Uninstaller and the CS3Clean script leave the numbered
versions behind?

If I uninstalled the numbered versions, would I be able to install the named
ones from the Photoshop CS3 install DVD?

I only have Photoshop CS3, not the whole suite, as I run older versions of
InDesign (v. 2.0.2) and Illustrator (10.0.3), as well as Acrobat 7.0.9, all of
which do more than I really need.