These bugs were reported here https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/500610

Both problems do not occur (for me at least) in Jaunty/nautilus-2.26.2-0ubun

[problem] No "eject" context-menu option for blank disks

[steps to reproduce]
When I right-click a non-blank disk, I get "unmount" and "eject" options.
When I right-click a blank disk, I only get "unmount".

[problem] Clicking eject icon in nautilus doesn't work for blank disks.

[steps to reproduce]

1. Insert a blank disk and it's recognized as such.
2. Open Nautilus in browser mode (Ubuntu default)
3. Click the "eject" icon next to the disk on the sidebar

What happens:

The working directory in Nautilus changes to /home/$USER

What should happen:

Disk should be ejected

[more info]

ProblemType: Bug
Architecture: i386
Date: Sat Dec 26 21:31:20 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: nautilus 1:2.28.1-0ubuntu3
ProcEnviron:
 PATH=(custom, user)
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-16.53-generic-pae
SourcePackage: nautilus
Uname: Linux 2.6.31-16-generic-pae i686