V/A - "Random Sounds Vol.2"
2006 - CD-R (Indie Workshop) (Limited to 250 copies; cardboard gatefold sleeve w/ sticker on cover)

Three tracks from three big hitters. All previously unrealeased jams. One track each from Everlovely Lightningheart, My Cat is An Alien, and (VxPxC). Clocking in at just under 50 minutes, it's sure to be your new bedtime treat. This one will be going fast, you can just smell it in the air. (Indieworkshop)

1) Everlovely Lightningheart - Loom
2) My Cat is an Alien - Aliens in the Crowd
3) (VxPxC) - A Positive Aspect of Dimensional Collapse

VARIOUS ARTISTS - "Orange Gold"
2006 - C20 Cassette (Gold Soundz)
GS#58

Edition of 40 copies cassette with colour paper fold-around covers featuring one track each from Roberto Opalio, Rameses III, Agitated Radio Pilot and Shattered Minds.

Roberto Opalio appears with his previously unreleased track "Transparent Moods"

VARIOUS ARTISTS - "Red Gold"
2006 - C20 Cassette (Gold Soundz)
GS#57

Edition of 40 copies cassette with colour paper fold-around covers featuring one track each from Painting Petals On Planet Ghost, Infinite Article, Crazy River, Sindre Bjerga and United Bible Studies.

PPOPG appear with the previously unreleased track "Oceano"

VARIOUS ARTISTS - "Yellow Gold"
2006 - C20 Cassette (Gold Soundz)
GS#55

Edition of 40 copies cassette with colour paper fold-around covers featuring one track each from My Cat Is An Alien, Entente Cordiale, Number None and Secrets To The Sea.

MCIAA appear with the previously unreleased track "Cosmic Distance"

VVAA "THE INVISIBLE PYRAMID: ELEGY BOX"
2005 - 6 CD compilation (Last Visible Dog)
LVD 080/086

"LVD's second compilation and spiritual successor to Drunken Fish's Harmony of the Spheres box (EP length submissions), but instead of 6 artists, there are now 31. The set features all exclusive material, and the total running time clocks in around 7 hours and 36 minutes. This compilation, like the first Invisible Pyramid comp (2003), finds its inspiration in the writings of Loren Eiseley (naturalist, anthropologist, and essayist); for whom an elegy to the first victims of the still-escalating wave of man-made mass extinction seemed appropriate. Each artist has dedicated their track to a recently extinct species (with a short bio), and Jeff Knoch (Urdog) has written a substantial essay to accompany the set." (LVD)
MCIAA play "Elegy for all the extinct alien species"

Disc 1: Black Forest/Black Sea, Birchville Cat Motel, Wolfmangler, Loren Chasse, Bardo Pond
Disc 2: es, Andrea Belfi & Stefano Pilia, Sunken, Kulkija, Tomu Tonttu
Disc 3: UP-TIGHT, Flies Inside the Sun, Uton, mudboy, Steven R. Smith
Disc 4: Keijo, Doktor Kettu, My Cat Is An Alien, One Inch of Shadow, Fursaxa
Disc 5: Ashtray Navigations, Peter Wright, Geoff Mullen, Urdog, Miminokoto
Disc 6: Area C, Ben Reynolds, Seht, Avarus, Renato Rinaldi, Matt De Gennaro

VV/AA - “Time and Relative Dimensions in Space: Long Form Works”
2005 – CD (Rebis)

“In 2004, Rebis Recordings approached five acts with an invitation to produce long form works designed to alter the listener’s perspective of time. Time and Relative Dimensions in Space is the result. Featuring exclusive pieces from Italy’s My Cat Is An Alien, Scotland’s Taurpis Tula, Chicago’s Number None, and Bay Area acts Jim Haynes and The Skaters, Time and Relative Dimensions in Space is a continuum-dilating collection of drone works that will expand your experience of space-time. MCIAA play the previously unreleased “alien substratum 1.0/1.2”

VV/AA - “The Tone of the Universe (= The Tone of the Earth)”
2005 – 2xCD (Pseudoarcana)

This compilation (the debut CD cds for PseudoArcana) arose out of an online discussion about the news that astromoners have discovered a galaxy - far far away - that is resonating in a steady B flat drone. Due to this drones inaudibility (not only is it remote but it is also something like 50 octaves below an audible pitch...) it was decided that a compilation of 'cover versions' was in order. That is not to however imply that the tone b flat is neccesarily present in all of these trks...Featuring: Blithe Sons, Peter Wright, Keijo, Eugene Carhesio & Leighton Craig, CJA, Anla Courtis, Vibracathedral Orchestra, Hands of Satisfaction, A.M/Uton, Neil Campbell, Birchville Cat Motel, The Skaters, seht, Of, 1/3 Octave Band, The Nether Dawn, My Cat is an Alien. MCIAA play the previously unreleased “Hear the Voice of the Cosmos”.

VV.AA. - "Related Prozzzect"
1999 – CD+CD-R (ZZZProd)
ZZZ-10

MCIAA perform the previously unreleased track "I sold an alien to the F.B.I."