How does iPod mini recognise what files are podcasts for it's main menu?


Hey everybody.

I'm a bit of a minimalist of late. I'm trying to setup my iPod mini's main menu to have as few menus as possible. I want a menu for bands and a menu for podcasts. So I have turned all main menu options off apart from 'Artists' and 'Podcasts'.

I deleted the artist tag on all podcasts and changes their genre to 'podcast'. This is great because now my podcasts don't appear in my artist sub menu, (only band names), however they don't appear in my podcast sub menu either!

So my question is how the hell does the iPod mini tell a file is a podcast if it doesn't look in it's genre tag?