How can I import a previous session from a multisession CDR?

I need some data that I burned onto this cd a while back. For some strange reason, the data seems to be missing, even though the folder is still there. I know that it has to still be on the cd, it's just that the current table of contents has just "forgot" of the existence of my files. I tried import the session using easy cd creator 3, but it doesn't work since my cd has been finalized. Any ideas?