Pardoné thy intrusion my Lords, but I now pray to you that you can find it in your heart to answer one simple question. I give you my word that if you help me, His grace shall be adequately rewarded. Allow me three shakes to demonstrate:
Alright, so this phenomena occurs when I run Disk Utility. Doesn't matter if it's off a DVD, USB flash drive or from another Mac in Target Disk Mode.
While it shows multiple FW hard drives, I assure you there is only one. If you let it sit there and do nothing, it will keep adding duplicates to the list and it does so about every 3- 5 minutes. Needless to say, repairing the disk doesn't work and it won't mount. In addition, I don't know the exact version of OSX installed, but it's an iMac (21.5-inch, Late 2009) and was shipped with 10.6.2.
Please show merci on moi my Lords and bless my with your infinite wisdom for I am merely a humble peasant. You will not regret helping me.