Comment 5 for bug 1354709

Same on Ubuntu Mate 14.10b1 on fresh install.

Attempt with Ubuntu Software Center failed, it hung, had to kill.

On reboot:

Failure to download extra data files

The following packages requested additional data downloads after package installation, but the data could not be downloaded or could not be processed.

ttf-mscorefonts-installer

The download will be attempted again later, or you can try the download again now. Running this command requires an active Internet connection.

Clicking Run this action now, just refreshed the error message.

Tried reinstall through synaptic, same result.

Note I did have Details window open, and was able to respond to basic old-PC style license agreement (not possible with Software Center). But still same result.

Most if not all of the fonts do appear to be installed!