Installer could not validate the contents of the "BaseSystem"

Reference the quite volumnious "Installer could not validate the contents of the 'BaseSystem'".
Given the dual-layer DVD inserted in a single-layer SuperDrive fact, I tried installing just the Base System with nothing else and got the same error. On the surface, this may indicate that even the BaseSystem is spread out between both layers.
Has anyone tried making a DVD/CD Master sparse image, cloning it to a spare partition, restarting the Mac from this partition and installing Leopard on another partition or other drive? I got this idea from the indispensable "Macfixit.com" web site.
Would that totally eliminate trying to install an OS from a double-layer DVD in a single-layer Drive?
So I am trying to determine if anyone has been successful using this image approach.

If the drive couldn't read DL DVDs, DVD Player would have trouble with most movies. There may be some burned DL DVDs that won't work in some drives, but factory pressed DL disks, such as Leopard, (if not defective) should be readable in any DVD drive. There may be defective discs, or defective drives, but a DL drive is not a requirement. The DL for a DVD drive only applies to its burning capability, not its reading capability.

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    Hello all,
    Sorry for my first post being a problem, but I am not the worlds greatest Mac person and I have been asked to support our Macs here at work.
    I have had a hard drive go in a MacBook, and I have fitted a new 160Gb hard drive (upgrading from the original 80Gb one) and I am getting the above error.
    I tried installing Leopard 10.5.4 from its original CD (we bought a full version when we upgraded this Macbook previously) and got the above error.
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    I have your solution! I just experienced the same problem after installing a new hard drive to replace a crashed drive in an iMac (Ambient Light Sensor) model.
    I initially thought it was the optical drive and/or the Leopard DVD. I tried two Leopard DVD's and both the internal slot-load and an external FireWire drive. All resulted in the same error at the calculation stage of the install...could not verify basesystem. All hard drive tests passed.
    I used the Apple Hardware Test (your original OS DVD) and what did I discover? A failed memory DIMM! Even though the Mac would boot from an external, I thought everything was OK. The failed memory DIMM is the culprit!
    Here is why: The Mac OS X installer copies data to memory, then copies to the hard drive. When the copied data encountered the failed memory DIMM, the Installer kicks back the failure that it could not validate the basesystem. The data in the memory becomes corrupt because the DIMM is corrupt.
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    [2014.03.28 12:08:50.563][TRACE][sbus.exe            ][sbusslogin.d][  4856] }        0
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    Hello Yogesh,
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    mapping:
    http://help.sap.com/saphelp_nw73/helpdata/en/f4/1978c3a37a441b87a89d61c1a08689/frameset.htm
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    David

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