Explain this, please.
Hi John (and everyone).
Music/albums or songs will still remain in the iTunes program even if you remove them from your computers storage folder to which the CDs are copied to.
When I'm happy with a batch of uploads, I will check if all the info is correct (the CDDB is not infallible when it comes to making cock-ups and likewise the info stored on box-sets for eample, can be incoherent sometimes, you may find this through experience when you start your daily uploads!) if this is all correct and the mp3 hasn't any errors on playback, I then delete the subfolder containing that album from my computer.
Providing the said tunes remain 'checked' or ticked in the iTunes list, they will not be removed from your iPod next time you plug it in for an update.
If there are tunes I want to take off the iPod, then I un'check' them from the iTunes list and delete them from the computers folder to prevent my hard-drive becoming too full.
Initially, I was under the impression that the iPod mirrored anything that was left on your hard drive each time you connected it. This isn't so.
Hope this helps. Sorry I am not more succinct.
Cherry Mistmus to all.