[BUG] Error Code 1 - Unknown Filesystem (AvidUnityISIS)

### Configuration
- Keka version: [e.g. 1.2.0-rc.1 (xxxx)]
- macOS version: [e.g. 10.12.6 (16G1212)]

### Describe the bug
I can't create any DMG inside the filesystem that is Unknown (AvidUnituISIS)

### To Reproduce
Steps to reproduce the behavior:
I don't think you can reproduce it in the house, because you need a Avid NEXIS system on your end and they are expensive.

### Expected behavior
I expect that it work.

### Additional context

IF I do it in terminal it work

hdiutil makehybrid -hfs -o destinationFoldertoDMG.dmg sourceFolderToDMG
But I cannot
hdiutil verify destinationFoldertoDMG.dmg
after converting to UFBI it can be verified.

Below this line is what is in the "error window"
Binary used: hdiutil
Arguments: (
makehybrid,
"-o",
"/Volumes/PPA/6_BACKUPs_DMG_Dump/OURO_VERDE_TRAILER_EMMYS_4MIN_V1.dmg",
"/Volumes/PPA/6_BACKUPs_DMG_Dump/OURO_VERDE_TRAILER_EMMYS_4MIN_V1",
"-hfs"
)
Creating hybrid image...

MESSAGE:Preparing imaging engine…

MESSAGE:Reading Driver Descriptor Map (DDM : 0)…

MESSAGE: (CRC32 $56BBD591: Driver Descriptor Map (DDM : 0))
MESSAGE:Reading Apple (Apple_partition_map : 1)…

MESSAGE: (CRC32 $3836A115: Apple (Apple_partition_map : 1))
MESSAGE:Reading DiscRecording 9.0.3d5 (Apple_HFS : 2)…

hdiutil: convert failed - Bad file descriptor

Error code 1