ubun2

All, Trying Unbuntu for the first time on an older Dell Poweredge 2500. Machine works to standard but I am having difficulty in getting this installed.  The install failed several times informing me of the CD not being read.  Upon further attempts, I downloaded the file once again, created the cd by unsing InfraRecorder at a speed of 6x and attempted once again.  I get the same failures.
 
Any ideas would be appreciated.
Michael