Trying to mount a DMG file compressed with XZ will fail because the compression method has not been implemented yet.
Here is an example file which is compressed in this way: https://github.com/kovidgoyal/kitty/releases/download/v0.36.0/kitty-0.36.0.dmg.
sect.method is 0x80000008 (2147483656 in decimal) with this file.
Trying to mount a DMG file compressed with XZ will fail because the compression method has not been implemented yet. Here is an example file which is compressed in this way: https://github.com/kovidgoyal/kitty/releases/download/v0.36.0/kitty-0.36.0.dmg.
sect.methodis0x80000008(2147483656 in decimal) with this file.