After reading the "How To" thread on copying music from my Mac to the Droid, it seems so straightforward. After trying the process repeatedly with no success, I need some help. The "no name" drive icon appears on the desktop and shows all the folders in the SD card. iPhoto starts automatically (I don't know why). I can add folders for Music and Photos. I can drag maybe one song from iTunes (ripped from a CD) and then everything stops. All the folders in "no name" vanish, I can't eject the "no name" icon. I get a message that "no name is in use and can't be ejected". I quit all the applications and still no luck ejecting the icon. The only way to unmount the SD is to restart the Mac.
After restarting and remounting, everything on the Droid and on the "no name" icon usually look as if I had not moved anything. Sometimes the first song was added to the SD. In that case, it plays as advertised. The folders I created are intact; I just can't add songs to them.
Missing something simple, I hope.