I wanted to add closure to this thread.
Last night I attempted to remove the residue from the Smart Blu disc. While polishing, I noticed that my microfiber cloth and lens cleaner alcohol/water solvent removed some residue from the disc. I allowed the disc to dry for 20 minutes and then attempted to burn some data.
IMGBurn reported a defect issue with the media and the burn failed at 5%.
I consider the issue with this disc to be a manufacturing defect.
Upon further inspection after the burn, I looked at the disc under a bright light and noticed that the stain I was trying to remove, was between the layers of the disc.
After burning 55 Smartblu Discs successfully, I can live with one defective disc in the bunch. I'd rather have the disc fail the burn process, than have it burn successfully only to become unreadable over time.
Thanks again to my fellow forum members, Kerry and Dean for their assistance!