Should I use reserved characters?

Hi
I am relatively new to HTML and ASP and have been asked to help update intranet and website pages for a company who very suddenly found themselves without a web developer. I took pages that are currently on the website and changed the content to show the new press release. Everything works absolutely fine in various browser, various versions of browsers and operating systems. The one thing that worries me is I did not use reserved characters anywhere, where I noticed the previous web developer did. Should I have used them or is it not needed anymore as browsers have changed? Is it may be needed for software used by the visually impaired?
Examples of where she used it:
New Zealand - I just used New Zealand
“ and ” - where I just used " "
Any help would be much appreciated!

The quote characters you are describing are the "curly quotes" or the ones that look like two commas look as opposed to "dumb quotes" which look like double straight lines.
I'm a big fan of dumb quotes because all browsers will show them -- even very old browsers. Lots of people freely copy and paste from Microsoft's Word (which is automatically set to use "smart quotes" or "curly quotes") and they'll see Microsoft's Internet Exploder render them correctly, while other browsers will show a diamond with a question mark in their place. This starts to get really ugly in a website when you look at it in Apple's Safari or in Mozilla's Firefox. So I tend to specify the dumb quotes and will take great pains in my code to put them in (and keep Dreamweaver from setting up the curly quotes).
These extended characters as defined by the W3C are mandatory and I prefer to carefully add them using search and replace. The biggest offender is the ampersand character because that initiates an extended character in modern XHTML code and there is an old US telephone company that uses that in their name. Dreamweaver CS3 didn't notice that I was trying to use the ampersand character and simply put that character into the text. I got problems with the W3C validator, despite the fact that every browser I looked at rendered the ampersand correctly.
So I have become very protective about quotes, choosing to mostly not use them (dumb or smart) and, instead, to use styles to indicate when someone is being quoted, like an indent or a paragraph style that is italic or a different color or typestyle.
But your answer is you must. And this is where Dreamweaver's Find and Replace can be your friend. If you do your searches for characters that need to be expressed differently in the source code itself, you'll find it most helpful.

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user8117130 wrote:
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Ziatron wrote:
... I am shocked and horrified to learn that the latest iMovie does not even set chapter markers!
.. I am looking into 2 possibilities, Adobe Premiere elements 12, or.........Final Cut Pro X.
The final result of my work is almost always a DVD. ...
... I do not need any of the high-powered affects capability that Final Cut Pro X possesses. My “movie-making” is mostly confined to simple editing (the old iMovie 06 did all I needed).
to turn perspective for a second by 180°:
Why do you want to switch to a new editor anyhow?
• iM-a never did discs - that was iDVDs job = no big change in your workflow
• iDVD is still working, and aside obsolete, complex and $$$$ DVDSP (part of obsolete FC/p) or Encore (part of Adobes CC rent package) your only option left to create disks on MacOS is indeed iDVD (...ok, there's Toast and Burn and some weird 'shareware'-stuff...)..
• iMovie-b supports the new HDef formats (AVCHD) - you mentioned converters and DVDs = no HDef in use, in your habitat, correct?
• if you don't need FCPX' bling-bling (I can't imagine that ) - why not using FCPX-lite = iMovie? 15$ ...
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