I don't see what this would accomplish other than a cold drive. Why is a cold drive better than a warm? Are warm drives inherently more error prone?

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I think it has to do with the mechanic parts being more rigid when cold, especially the head. With less 'wobbling', chances of reading data are temporarily enhanced.

It actually worked for me once, when my HD started crashing after an elongated period of relaxed backup discipline *ahem*. I was able to get about one last hour of operation out of it with three of four overnight freezing sessions.

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I don't have any real backup system in place. If I have a document I really care about, I just upload it to some online server (like Gmail). I had my HDD crash before, and I lost all my files, but it wasn't too big of a deal for me as I don't and didn't have a whole lot of important files stored on my computer.

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