Wow the attached video is from a company called ioSafe. They specialise in 'Disaster Proof Hardware". Very impressive video showing a hard drive which can with-stand fire and water. Not too bad for £200 really. If you do find yourself in the unfortunate predicament of having a completely burnt or water damaged hard drive ioSafe will pick up your hard drive, retrieve the data, upload it onto another device and send it back for free.
Check the video: