ignore URL in Routing class

[eluser]rpl oye[/eluser]
hi. i wanted to make easy SEO URL.
for example
example.com/product/123/ipod-8gb.html

this page should display product with ID 123. which is ipod 8GB.

i can route the product/123 to product controller and 123 as the product ID with routing class..

my question is.. can code igniter ignore the "/ipod-8gb.html"?

i just need them to make the URL more beautiful