Nero Linux 3.5 is now finally available for download here. This version is the first big update to Nero Linux 3.
It now contains a command-line tool (called NeroCMD) to use the Nero Burn Engine directly from scripts or 3rd party applications.

Changelog for this version:

New features:

• A command-line tool, nameed 'nerocmd', has been added. Please consult its manual page for more details.
• The Nero Digital Audio+ Plug-in is now included for decoding and encoding files. This plug-in is currently only available in 32 bits. It will also be released in 64 bits in a future version.
• A physical device presence check is performed at application startup. The device permissions check is then only performed if no physical device is found on the system.
• The installer will try to check the current kernel configuration and update the /etc/modules file if the SCSI Generic Support is compiled as a module, and the module is not loaded.
• The installer will add a shortcut to the application in the AsusLauncher utility of the Asus Eee PC.

Patches:

• The 'Add Files' dialog box now also works with Mixed Mode and CD EXTRA compilations. 'Function not implemented' errors no longer appear.
• The 'Open Compilation' and 'Add Files' dialog boxes are now correctly sized when using old GTK+ versions.
• Fixed German translations in the Nero Linux Compilation MIME type description string.
• You can now burn multiple copies of an Audio CD compilation without problems.
• You could not create bootable discs that contain a pure ISO 9660 file system. This is now fixed.
• The MP3 Plug-in now gets the frame size correctly for all bit rates.
• The 'Writing file' label value does not show '?? BUG ??' for HD DVD and Blu-ray Disc images anymore.
• Fixed GTK warnings when the demo dialog box appeared in Asian languages.
• The 'Number of copies' widget is now disabled if no real write process is performed.
• The ASPI has been slightly improved to avoid deadlocks with specific hardware configurations.

FYI - I got these warnings when upgrading from v3.1.1.0 (x86) to v3.5.0.1. I think it's more of a problem with RPM though since it doesn't quite handle switching between symlinks and files too well (or vice versa). I ended up uninstalling and reinstalling the RPM to make sure it doesn't keep happening in the future.

[root@localhost v3]# rpm -Uvh nerolinux-3.5.0.1-x86.rpm
Preparing... ########################################### [100%]
1:nerolinux ########################################### [100%]
ln: `/usr/share/mime/packages/nerolinux.xml': File exists
ln: `/usr/share/icons/gnome/16x16/mimetypes/gnome-mime-application-x-nero-disc-image.png': File exists
ln: `/usr/share/icons/gnome/16x16/mimetypes/gnome-mime-application-x-nero-linux-compilation.png': File exists
ln: `/usr/share/icons/gnome/24x24/mimetypes/gnome-mime-application-x-nero-disc-image.png': File exists
ln: `/usr/share/icons/gnome/24x24/mimetypes/gnome-mime-application-x-nero-linux-compilation.png': File exists
ln: `/usr/share/icons/gnome/32x32/mimetypes/gnome-mime-application-x-nero-disc-image.png': File exists
ln: `/usr/share/icons/gnome/32x32/mimetypes/gnome-mime-application-x-nero-linux-compilation.png': File exists
ln: `/usr/share/icons/gnome/48x48/mimetypes/gnome-mime-application-x-nero-disc-image.png': File exists
ln: `/usr/share/icons/gnome/48x48/mimetypes/gnome-mime-application-x-nero-linux-compilation.png': File exists
ln: `/usr/share/mimelnk/application/x-nero-disc-image.desktop': File exists
ln: `/usr/share/mimelnk/application/x-nero-linux-compilation.desktop': File exists

Thanks for pointing this out. I just informed our deployment team about this issue.