Opener announcement service public is just an intro not a proper song, so pretty much disposable.
Qwerty, is a very good song and it is amazing it wasn't on minutes to midnight as it is better than half that album. It is classic linkin park, that combines mike shinoda MCing and Chester bennington screaming like a banshee.
And one, is a pretty good track but not a lost classic. That said it does sound like it was culled from hybrid theory rather than anywhere else.
Sold my souls to yo mama is again pretty disposable, essentially an instrumental.
dedicated demo, it is interesting but it isn't a great song.
Hungerstrike again isn't bad but is hardly essential listening, more chris cornell than linkin park.
My december (live) well it is a good song but nothing you haven't heard before.
Part of me is pretty good and the extended outro with extra at the end is okay.
All in all a weak package, ok as an EP but not worth forking out much for.