While installing Ubuntu I mistakenly selected the wrong disc (in this case, I wanted to install on drive E:), and almost at the end of the installation process I got an error message like this:
Defective CD, burn the CD at lower speeds, try from USB or disc error
I booted from Windows XP and drive D: is not shown. Tried from Ubuntu CD and my files are missing, so I presume the whole disc was formatted.
I would like to recover my data.
My PC does not boot from USB.