Well, I guess I'm more than two years late

but still, if someone finds this post in Google, and wants
to recover data from one of those Creative Jukebox 3 units
with those damned proprietary drivers (why didn't they use USB Mass Storage?)
and proprietary filesystem (why in the world didn't they use FAT32?),
the answer is here (the link posted above doesn't work anymore):
https://gist.github.com/816115Some guy modified that script to recover data from a Nomad Jukebox and Zen Xtra hard disk,
be it deleted files or just regular files. So now it could recover deleted data!
Just download that Python script, edit it so it says ZENVISION=False (JB3 and Xtra need that)
and run it from a Linux Terminal like this:
sudo python zenrecover.py /dev/sdc destinationfolder
Substitute "sdc" with the last three letter word you see when listing this:
ls -l /dev/sd*
(the Nomad hard disk should usually be the last one when plugged to your computer)
You can use any Linux, even running it from a CD or pen drive (the latter is faster).
If you are uncertain how to do that, you can use the Ubuntu Windows installer:
http://www.ubuntu.com/download/ubuntu/windows-installer(it installs Ubuntu as if it were a Windows program)
I appreciate this might not be ultra-easy for everyone (specially those not familiar with Linux),
but that's just about the only possibility when you want to recover your data from that kind of device.
In my case I can't use the NJB3 anymore since it's not compatible with Win7 x64.
This device could be still working perfectly if it used more standard stuff such as
regular USB Mass Storage protocol and FAT32, but all that proprietary crap it uses makes it obsolete
for new operating systems. Pretty sad, since the hardware is great,
but the software stinks. Well, just about any Creative product suffers from this disease.