Today, 500GB HDDs are under 45 bucks so risking your files for so little is not a good idea.
As to getting the files out, try Roadkil's Unstoppable Copier.
Ive run ChkDsk several times both at DOS Startup and in GUI Modes with "Check for and attempt Recovery of Bad Sectors" selected, but afterwards when my system tries to copy particular files I get the Cyclic Redundancy Error again, and my entire Folder Copy Terminates. Is there Norton/Symantec or other less expensive means to deal with, or workaround this problem besides manually excluding every new file it errors on?

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