Are all Laptop Hardrives compatible with any Lapto

[xynther]

Hi all, i recently bought a laptop on ebay and it needs a harddrive, i also have another laptop one but its a different model of compaq, and i was messing with and figured i might as well see if the harddrive from that one fit my other one, and it did! So now im wondering why should i pay alot more for a specific model hardrive if i can get a much cheaper one that is not necessarly specific to my model laptop (compaq presario 1505us). Well, let me know if u guys happen to know about this matter.

[natesneat2000]

If it fits, that most likely means it will work. Assuming it won't matter (much) if you break laptop or HD, I'd go for it; saving money is always good. Here is an article about laptop hard drives:
http://www.techtv.com/screensavers/howto/story/0,24330,3633761,00.html
Good luck; hope it works out!