After a conversation in MC Gold, I figured I would share the following information in the Tech Lounge.
When you write on your disks, please please please remember to use a pen that is made for CDsDVDs. My brother knew a sound guy that worked at Disney. He put his entire library on back up CDs and wrote on them with a regular Sharpie. The ink deteriorated the CDs over time and he lost his whole library. Very sad.
I found this on a google search:
Sharpie does sell a pen that is compatible with CD media:
I bought mine for work through Office Depot.