If you are just discovering Country Joe & The Fish, this is the album (err...CD) to start with. Half studio and half live, if you don't own anything by Country Joe & The Fish, this is a great sampler to indoctrinate you to one of the great political and one of the most infamous (thanks to the "FISH" Cheer) band of the mid-to-late 1960's.
The studio selections include a demo of "I-Feel-Like-I'm-Fixin'-To-Die Rag", Joe's ode to Janis Joplin, entitled simply "Janis", the haunting anti-war "Untitled Protest" and the wonderful "Sing Sing Sing" from the band's swan song (which, unfortunately, only included Country Joe and Barry Melton from the original lineup).
The live set, culled from various Fillmore (East and West) concerts and previously unreleased tracks from the Woodstock festival, is excellent. "Superbird (Tricky Dick)" is a great jab at Richard Nixon, who was running for president at the time.
The absolute kicker is the two songs from the Woodstock set: Barry Melton's "Love Machine" and a totally, kick-ass electric version of the perenial "I-Feel-Like-I'm-Fixin'-To-Die-Rag", which absolutely outshines the original studio version.
This serves best as a sampler so you can decide whether or not you'll like CJ & The Fish. They are an acquired taste and many will take a listen and say "No Thanks", but for many of us, this is the springboard album to the rest of the CJ & The Fish library.