Disc Error

Hello there, I need help I have a disc error, that is when I on my computer the page said Disc error.I would like to know is there anyway to get back the data in this drive. Which is the best way for a layman to do it. My OS is a P3. 1GHz.with 254RAM, Windows 98SE. Recently I came across software, which claim it could repair back a bad drive can you tell me which software is it? Thanks. Chee.