Hard drive question

Write caching actually creates temporary files on the HD and only
permenately writes them when you "stop the device" or shut down your computer. Not a good idea if you use iTunes to auto sync your ipod. If you were to remove the ipod from the cradle without first stopping the device then the music you just transferred would not show up on the ipod (or worse, it might corrupt the database)

Translation:
Don't do it ;-)