even though it sounds like an interesting idea of freezing your hhd to recover data is new to me, although it may work and all, here is my conclusion on the subect. when a hhd starts making clicking sounds a begans to get noisy. the hhd read/write arm is starting to go, this can be bad. after awhile the hhd will start to lose data and evenually will stop reading & writing. the solution, to just get another hhd. they are not expensive, and your computer will be alot happier in the end.