Last week I was clearing my cabinets of old A/V gear for donation/recycling and rediscovered a first-gen ipod shuffle (the one with a string to hang around your neck), a newer clip-on shuffle, a 5th generation iPod Nano and 5th generation 30GB iPod. They all accepted a charge, but could not be managed on my Mac Studio that's running Sonoma 14.7.6
All are recognized as USB storage devices but ... you know the story ... Finder doesn't treat them like an iPhone.
Thanks to all the members who offered suggestions in this thread!!!
I discovered from you what seems to be the secret formula:
(1) Reformat the iPod using Disk Utility. MacOS Extended Journaled
This cleans almost everything out, leaving a basic menu but no data in the iPod.
(2) here's the secret ... Click on the iPod under "Devices" in the MUSIC APP !!!
This is where you can setup your sync settings then move selected music, audiobooks , etc. to the iPod.
The Music App threats these iPods like the good old days when we had iTunes!!! This is quite a surprise, since Apple decided that iPhone syncing should be done in the Finder.
Note about playing video on an older iPod: High Definition is not supported. You can try using a program like Handbrake to convert the HD video file to lower res, something like 320x480 or 640x480 and 30 frames per second.