My intention here is to set a rarities list of all Liam Finn and Liam-related projects. This will be an ongoing process that I will edit from time to time (much as I have done with Tim Finn and Neil Finn -- though I need to update those, as I have discovered some errors.)
I have bolded in red those entries which I'm unsure of. If there are any Liam Finn fans out there who have information about those, or any entries to add to this list, please let me know, I will add your information
2000
Betchadupa EP -Betchadupa
The 3D EP -Betchadupa
2001
Move Over [Betchadupa B-side, Sleepy News]
Lucid Dream [Liam Finn, B-side Sleepy News; also released on Rain soundtrack
Dirty Creature [King Kapisi and Betchadupa, released on Live at Helen's compilation
Two of Us - Neil and Liam Finn from I Am Sam soundtrack
2002
The Alphabetchadupa
Drowning - Betchadupa, Supa Day
Lost My Friends - Betchadupa B-side
Outta Space - Under the Influence: 21 Years of Flying Nun Records
Bad Drives, Fast Food - Under the Influence: 21 Years of Flying Nun Records
2003
Move Over -Betchadupa [Single Edit], Move Over
The Bats of Darkwell Lane [Alternate] -Move Over
Intensity in Ten Cities -Move Over
2004
Aiming For Your Head
Supa Day [live] Betchadupa, Who's Coming Through the Window?
Design [Live] Betchadupa Who's Coming Through the Window?
Elroy [Live] Betchadupa Who's Coming Through the Window?
Move Over [Live] BetchadupaWho's Coming Through the Window?
2005
Cut Me Down - Betchadupa, My Army Of Birds and Gulls
Hell's What It's Coming To My Army Of Birds and Gulls
He Is the Devil's Advocate My Army Of Birds and Gulls
Sweet Dreams [Live in Studio] from VA compilation Triple J: Like a Version
2006 -- I am not sure about these: I believe they were released on MySpace in 2006 -- I know some of them were. Does anybody have any information on these?
Forgot the Key
Take a Chance
Always Unclear
The Point
The MOney
Jam
You and Me On A Shopping Spree
2007
I'll Be Lightning
Turn Up the Birds (bonus track vinyl and iTunes I'll Be Lightning)
I'd Rather Waste You than Money on My Phone (bonus track vinyl and iTunes I'll Be Lightning)
Come Home Sam (bonus track vinyl and iTunes I'll Be Lightning)
I Found Noise at ATP (bonus track vinyl and iTunes I'll Be Lightning)
I Will Explode (bonus track vinyl and iTunes I'll Be Lightning)
Merry Christmas Everybody - Liam Finn and Friends/The RocKwiz Orchestra The Christmas Album
Live [At Spaceland]
2008
ChichiChachacha (B-side, Better to Be)
Never Feel the Same [Download only bonus track from Yep Roc's I'll Be Lightning]
Oh, I Know [Download only bonus track from Yep Roc's I'll Be Lightning]
Live at the Wiltern (Liam Finn and Eliza Jane)
2009:
The Sun Came Out - 7 World Collide
Live at the Power Station -7 Worlds Collide
Champagne In Seashells (Liam Finn and Eliza Jane)
Captain Cat is Crying - (Liam Finn and Eliza Jane, bonus track to vinyl version of Champagne In Seashells)
Old Man (Liam Finn and Eliza Jane, from VA compilation Monday Morning, from RocKwiz)
Having a Baby - Liam Finn, Connan Mockasin, EJ Barnes, Laurence Arabia, Seamus Ebb, Jol Muholland
Theremin Siren?? On soundcloud
Car Crash Jam? on soundcloud
2010
BARB
2011
FOMO
Life Isn't Stationary(on FOMO bonus EP)
Cold Feet (Live)(on FOMO bonus EP)
Roll of the Eye (Live) (on FOMO bonus EP)
The Struggle (Live) (on FOMO bonus EP)
Better to Be (Live) (on FOMO bonus EP)
2014
The Nihilist
This Love is Crying -- Liam Finn, Ernie Brooks, Peter Zunno
2015:
I'm the Man Who Will Find You
Drive Sleep Song
Jam at the Church of the Holy Sepulchre (live)
Live with the Dream Team on the Roof of [the end] -on soundcloud:
Helena Bonham Carter [live]
Ocean Emmanuel(live)
Snug as **** (live)
Nothing Compares 2 U -(live featuring Connan Mockasin)
Filter In My Mouth (live)
4 Track Stomper (live)
Miracle Glance (live)
Burn Up This Road (live)
The Nihilist (live)
2016:
Waiting for Your Love (from the Various Artist compilation Waiting for Your Love: A Tribute to the Reduction Agents)
2018:
Lightsleeper
Troubles: ( bonus track from vinyl version of Lightsleeper)
2019:
Susanne Bartsch: On Top Original Film Soundtrack