So, I plugged my Express into a charger (usually I have to use the computer) and it eventually fell asleep. When it work up it wouldn’t get past “Do Not Remove SD” so I knew I was hosed.
When plugged into the computer the Express showed the directories, but I couldn’t copy them off.
I pulled the 4 Gb Sandisk Micro SDHC card, put it in a reader, and ChkDsk just saw a mess. Back in the Express plugged into the computer it looked fine, but standalone, choked stil.
I formatted the card and put it in the connected Express. Looked OK, so I created a Music subdirectory and copied files.
Standalone, they were gone.
This time I tried to follow a procedure.
Format SD in Windows.
Place SD in Express and plug into computer.
Format SD on Express
Remove and reseat Express in computer
Look to see if Express has created MUSIC subdirectory.
Copy some files into there
Remove Express and see if the music is seen. If not, repeat. If seen, plug in and copy all your files.
This is what seems to work for me after many trials. You need a clean card, yes, hence the Windows format, but you also need the card to be “blessed” by the Express. Until the Express has written it’s own structure, don’t bother trying to add files.
I bought a 1GB refurbished Express for $11 at Buy.com, and a Kingston 4 GB card. When they are both here I will try it again from scratch.