Why checkout form countries name twice?

Hello Ray, I am planning to set ecart checkout form and users form dynamically from database. I am thinking to insert all countries name and value code. I found that you have many countries names twice. So, my question is: do I have to insert twice in database too? I created a table with CountryID, CountryCode and CountryName. I also created a recordset for that table like this: <?php
$rsCountries = new WA_MySQLi_RS("rsCountries",$conn,1);
$rsCountries->setQuery("SELECT * FROM countries ORDER BY CountryName ASC");
$rsCountries->execute();
?>

So please when you have chance guide me to set it dynamic but keeping the style you have so I can save as billing too.

Let me meke a comment, everything look correct but the problem is that I cannot save as billing just in case I wish it. so what can I do to fix it?