Patches and discussion for Ensoniq VFX family

Hi there,
New to the group but I have owned an sd-1 for a while...
Just pulled it out of the closet and can't find
the disk with the sequencer OS on it....
Where can I find that ?
Do I need the Giebler Disk program to write it ?
I have a Mac.... can I still get it to work ?
Any help appreciated .
Wayne