using file OPNsense-20.1-OpenSSL-vga-amd64.img.bz2 (and others)
from site http://mirror.as24220.net/opnsense/releases/mirror/ (opnsense official Australian mirror)
Balena Etcher shows them as 9.44 ZB large. Understandably while writing I didn’t wait for 1%…
If I use 7zip to decompress first, then write, image is 1.2 GB or so and writes just fine.
A bug in the bz2 decompress routine to do with the version of bz2 used on the opnsense files? No idea, just throwing ideas around. Anyway, I love the software, so had to share the hiccup.
PS: win10 x64 etcher 1.5.100