iso burn

[Hal Wigoda <hal.wigoda@xxxxxxxxx>]

I downloaded the CentOS-6.5-x86_64-bin-DVD1.iso
and CentOS-6.5-x86_64-bin-DVD12.iso
and tried to burn them to a DVD but both Windows 7 and IOS
( MacBook Pro ) do not recognize these as valid isos.

What am I doing wrong?
-- 
-----------------
Hal Wigoda
Chicago
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