passing a lot of data via uri segments

[eluser]spherop[/eluser]
newbie to ci and still learning the ropes ...

i have some jquery/javascript code that will insert data in the db by ajax request.

in the form data are many fields including [artistname, genre, url, description] etc.

is the standard uri segment approach used in a case like this typically?

in this case the user will not see the url as it will be ajax, but i am wondering what people do when they don't want a huge ugly url from a lot of data being passed in?

what kind of encoding decoding needs to be done to prevent (using a url as example) "/"'s or other characters from messing up the uri segments?

love some guidance or pointers ...