Xbox360 cannot go 180 on its Z-axis

My brother mistakely tried to right the XBox 360 when it was upside down while turned on and accessing the disc.

The Result:

A ring similar to this one:

Image provided by: Wikipedia – Xbox 360 Technical Problems: http://en.wikipedia.org/wiki/Xbox_360_technical_problems#Scratched_discs

There goes GTA IV ($55.59 down the drain)

Hopefully I can get the disc repaired or replace for a small fee.