TOPIC: Don't understand: "Convert to iso-8859-1" choice

Hello,
I've successfully imported old comments from another component (thanks to help here in forum). I have a question: In the list alternatives there's a button called "Convert to iso-8859-1". The webpage I'm running is in English language, so I wonder if I would need to mark all comments and press this button or not? The source of my homepage says "<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />", so I then guess I don't have to convert as it already is this iso-number? (You're absolutely right; I have no clue what I'm asking about, hehe.)

What is the charset of your database (check it with phpmyadmin).
If you can see the comments and there are no errors - then better don't touch it.
Are the comments readable in the database?

Hello, yes, the comments are readable - meaning they look just fine on my test page. Even Norwegian letters like æ, ø, å are showing correctly. This is why I didn't understand that button, as everything seems to be ok.