Bob,
I believe I had sent you a private email response but will equally reply here so others can share too.

See answere within your text below:

On Question 3 about editing and saving the 64 preset voices, I guess I should have asked if i can switch locations of the preset voices. For Example, can I move Blow Sax to preset location, 1, Trumpet to preset location 2, Put Hawaiin guitar in preset 3,etc., and then save this? This would make voice changing much easier for the voices I use the most.
>>>AJ: This can be done if you go to the location you are interested in (EG PIANO) and just edit the voice to be the sax, trumpet or whatever you want. Then save with the new name. This location then holds just the voice in question.
Next clarification, When I go to save the settings, as you described, a warning screen comes up saying "File: Machine.ini is present in this folder. Overwrite?" This sounds ominous and I don't want to screw up anything. Is this just asking me if I want to save the changed power up file? I believe that's what it means, but I want to be sure.
>>>AJ: Yes, this is what it means. Just make sure you are in the root directory ("C:" is displayed on the top-left side of the screen). If you want to ever return to the KETRON settings, do SAVE the original "Machine.ini" file to another folder eg Wave, MP3 or just save to your computer.
This brings me to another question. Is their a factory reset procedure, (in case I do screw up something,) where I can return the midijay to it's original factory settings?
>>>AJ: The midijay reads the files from the root directory of the HARD DISK in order to establish it's settings. It would be safe to copy ALL these files to your PC/Computer, so incase you want to go back to the factory settings, these files can be re-loaded into the machine. There isn't a 'RESET' button per say.
Finally, in the manual, at the bottom of page 2, under "In order not to lose data" it advises back up of data. I assume this refers to .wav,.mp3, and ,mid files and not the Midijay operating system. Can I actually wipe out the operating system? And if yes, how do I restore it?
>>AJ: Yep - this refers to the Wave, MP3, Midi ... etc but also the STYLES.BIN, MIDIJAYOS.BIN and other machine files ... just incas. If for any reason your Hard disk were to be erased, you will need these files to activate the machine and the others to play!!
Thanks again A.J.. You are indeed a prince of a man.