Install Error

Im trying to install ssi-9.209-8.1.iso on my Dell Optiplex GX520.

Immediately at boot the following error is displayed at the terminal:

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Could not find ramdisk image: initramfs.gz
boot:
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I can see the "missing" file under ssi-9.209-8.1\isolinux\initramfs.gz on the CD. 

What's going on? Thank you for your help!

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