Actions like mounting and formatting tapes are influenced by the hardware drivers. 


In particular, PreRoll Post for Mac requires a version of OSXFUSE that is version 3.x or lower. That's because version 4.x of FUSE no longer supports the older mount command that PreRoll Post used.

To roll back FUSE to an earlier version go to System Preferences and remove FUSE. Restart the computer for removal to take effect.


Now go to OSXFUSE website and download and download version 3.11.2. Run the installer, then restart the computer for it to take effect.


Please note that PreRoll Post is end of life. It is not compatible with Catalina (OSX 10.15) or BigSur (MacOS 11).