This album is a collection of Green Day’s oldest music. The style is quite different to their more recent songs but I really like it. I often play it in the background - the songs have a good beat that is conducive to studying, or at least that is what I tell myself!
There is also a recording of an Green Day playing some of these songs live on KZSU, the Stanford university student radio that is worth a listen if you like this era of their music.