Zeppelin's Presence and Coda.
EEEGAD!!!
Coda was a rushed out b-sides and outtakes collection - I don't think it's fair to say they should have never have released it. There's some good songs on there at any rate.
Listening to
Coda, you can hear why those cuts were never finished or never ended up on finished albums. There were some good ideas and some of them could have
become good tracks, but there were some dead ends and a lot of dross which would have had to be refined out. Sometimes it's just better to start over -- toss out something which isn't really working and write a new one.
I don't quite get the rap against
Presence, though. No, it isn't their strongest album -- "Royal Orleans" is kind of a throwaway and "Tea for One" really sounds like them having another bash at "Since I've Been Loving You" -- but there's plenty of meat there and "Achilles' Last Stand" and "Nobody's Fault But Mine" can't be mistaken for anything but solid Zeppelin. Great show live, too.