So what is a dmg file?

[Victor Eijkhout]

I know, disc image. But why

[~/Downloads] %% file *.dmg
CTVDPro_Beta-1.dmg:       VAX COFF executable not stripped - version 15409
CTVDPro_Beta-2.dmg:       VAX COFF executable - version 16600
CTVDPro_Beta.dmg:         VAX COFF executable
M-OSX-P-5.0.0-229282.dmg: Apple Partition data block size: 0 first 
type: ple_partition_map, number of blocks: 150866,
MenuMeters.dmg:           VAX COFF executable not stripped
Wallet.dmg:               VAX COFF executable not stripped - version 15169
iBeeZz 1.5.0-Intl.dmg:    VAX COFF executable not stripped
qkx202b6.dmg:             VAX COFF executable
[~/Downloads] %%
-- 
Victor Eijkhout <eijkhout at cs.utk.edu>, 329 Claxton, Comp Sci, UT, 
Knoxville TN 37996.
tel: 865 974 9308 (W), 865 673 6998 (H), 865 974 8296 (F)
http://www.cs.utk.edu/~eijkhout/