Hi, Dennis,

> Can someone here please point me to a webpage or explain how are
> they different, and which is the standard now?

I was also interested in this question of standards a while back. I
summarized my findings as follows:

"There are two ways of representing the roman characters with
diacritical marks we need to display romanized Pali on the internet.
One way is to use a private encoding system. This is the approached
adopted by fonts such as VRI, CSX, and Times Normyn. The other way
is to use the Unicode system of encoding. In Unicode, the ranges of
characters we need are called Basic Latin, Latin-1 Supplement, Latin
Extended A, and Latin Extended Additional. All standard fonts now
support Basic Latin and Latin-1 Supplement, and many support Latin
Extended A. It is the need for Latin Extended Additional that limits
our choice. For a list of fonts that support Latin Extended
Additional, see Alan Wood's Web Site. Note that not all fonts
provide representations ("glyphs") of all characters in this range.
For the representation of Pali characters in plain text without a
special font, the Velthuis system has become standard."

That's from my "Taste of Pali" page at:

http://www.geocities.com/derekacameron/pali.html

Derek.