This error has many causes not the least of which might involve copying files to or from MSDOS formatted disks. However, your error suggests a simple cause - you have a bad file.
Thankh you both.
My original post got cut off but I was saying that I'd searched for an answer but couldn't find anything about this specific error code.
I was successfully able to copy the very same folder containing this problem file to my internal HD. I experienced the message only when copy from one external to another external. The target external drive has two partitions; one is Mac OS X Extended (Journaled) while the other is Windows NTFS. I'm copying to the OS X partition so I'd be surprised if the other partition has anything to do with it.
Anyway, thanks again for the help.