Charles wants to know the best way to set up Time Machine on his Mac with macOS Mojave. Leo says that in the new OS, there is a new APFS file system, and there have been backup issues with Time Machine and others. He may need to use an external drive formatted with the old HFS file system. That will insure that if his internal drive dies, his backup is secure. Leo also recommends not using Time Machine as his primary backup system. He should make an image backup with SuperDuper.
Bren is having trouble updating music on an iPod. He tried to connect it and the Windows machine wanted to erase it because it was formatted on a Mac. Leo says he can buy a program that adds the capability to read HFS formatted hard drives. MacDrive from Media Four is what he'll need. There is a free five day trial, too. It's essentially a driver that runs in the background and translates the HFS formatted data so Windows will read it.