help with some files

ddsomu: dd2.13 4194304 bytes
ddsomu: dd2.15 4194304 bytes
ddsomu: dd2.17 4194304 bytes
ddsomu: dd2.19 4194304 bytes
ddsomu: dd2.14 2097152 bytes
ddsomu: dd2.16 2097152 bytes
ddsomu: dd2.18 2097152 bytes
ddsomu: dd2.20 2097152 bytes
ddsomu: dd2.01 131072 bytes
ddsomu: dd2.02 131072 bytes
ddsomu: dd2.11 2097152 bytes
ddsomu: dd2.12 2097152 bytes

I need those files in order to play D&D SOM, but from every site ive downloaded from nobody had that, what are those and where do i get them?