It's unlikely a different disk would break down in the same way, sounds probable that its some unknown malware thats hiding in your backups or the thing has a defective power regulator thats zapping parts, possible other things too, bad bios drivers that handle it, bad heat dissipation design, a program that is hard on the drives (like pagefiling too much), etc.

I know its unlikely, but that doesn't necessarily mean it's not possible... if it does that might as well be the equivalent to getting struck by lightning twice in a row or winning the lottery.

Honestly I can't doubt the malware probability. Ever since I had my first problem with the computer after a rough 2 year period, everything has been acting up ever since.
As far as power goes, I can't really do anything about that. I very very rarely use the battery power on my laptop as I almost always have on the power cable whenever I use it. There may be something wrong with that line of power... but the battery hardly gets any use when I do use the computer.
Heat dissipation is always a possibility though I hardly used the computer this year (yes this year because I had to reformat it with a different Microsoft OS disc [still under a Microsoft XP OS though but not the original Microsoft Windows XP Media Center Edition] rather than the default restore discs that had came stock in the computer when I bought it because for some reason they had become unreadable as when I last reformatted, the computer had no system files), but prior to that I've been having problems with heat and a couple times the computer did lock up having me to restart manually using the power button (I would restart the normal way but I can't do anything on the computer when it locks up, I can't even move the cursor).
Hard programs- maybe but I have hardly used the computer much this year. The last thing I had done on my laptop was record some rare LP records to MP3 format. Apart from that I haven't really used my laptop for anything really heavy running.