Three compression Live CD(cloop,cramfs, zisofs)
The Knoppix LiveCD provides a cloop format for its compression of the program material.
In addition, a second compression format ...cramfs... can be utilized if Klik is introduced after install of the LiveCD.
Perhaps a third compression could also be applied after boot-up...for what purpose I have no idea....just thought it might be interesting to think about.
Perhaps 3D encoded on two compression formats.
Maybe ...cramfs0...cramfs1...cramfs(x).
Edit: Actually, cloop, cramfs and zisofs provide three compression LiveCD (or desktop, too)