Not Installable because the disc is unreadable?

I bought the starter kit for the X-Box 360 as Amazon Warehouse deal.
After just a few days the game was there, perfectly packed, complete and intact.
So far so good. Now came the disillusionment.
After the instructions, the base connected via USB, Disk clean and turned the console.
(My X-Box is not connected to a network).

Then came the news that the game can be installed only if previously an update of X-Box is done.
Agreed and on and lo and behold, the upgrade process aborts with an error message, the disc is unreadable.

I had the game almost returned after several attempts then.
However, the solution is relatively simple.

Go on the internet on the X-Box support pages and download the latest system update for example USB flash drive.
Unzip the zip file, there appears a folder called System Update &.
Pushing it into the root directory, for example, the FAT32 formatted USB stick, so that the files are included here:
USB flash drive: \ $ System Update \

Connect USB stick to the X-box and start the box. The box updates itself and behold, Disney Infinity runs.

Judging by the back runners and to the Warehouse Deals at Amazon, I'm probably not the only one who has failed thereto.

Alternatively, you can download the update files as CD version and burn a CD.