Error installing Ubuntu 11.10 on VirtualBox

[Suhaila Haji Mohd Hussin]

Hello.
I got this kinda error
Errno5 input/output error
This particular error is often due to a faulty CD/DVD disk or drive, or a faulty hard disk. It may help to clean the CD/DVD, to burn the CD/DVD at a lower speed, to clean the CD/DVD drive lens (cleaning kits are often available from electronics suppliers), to check whether the hard disk is old and in need of replacement, or to move the system to a cooler environment.

Please help a.s.a.p,Suhaila 		 	   		  
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