I've got to chime in about Crucial's warranty service. I've bought maybe a dozen pieces of memory from them over several years. All performed flawlessly except for one which failed after a year and half in (of course) my mother in law's computer. I'm over at her house trying to figure out what's wrong with the computer, narrow it down to a bad DIMM. I call Crucial. Everyone I spoke with was very helpful, they didn't give me grief about when did I purchase it, etc-they looked it up on their system for me. And cross shipped the replacement DIMM that day (charged my card, but gave full credit immediately when the bad one arrived). They kept me posted every step of the way in the replacement process with frequent emails. As far as I'm concerned, Crucial's customer service is absolutely topnotch.
Apacer may have good memory products, I don't know, but memory is one of the rare components where I will always stick to buying a known brand name-Crucial, Mushkin, or the like. I've had no-name memory in the past and don't care to live through the intermitent problems it causes. Quality memory is essentially the same price or cheaper, and I can live without the frustration for a couple of dollars more anyway.
And kitmura, please edit your title to make it descriptive of the deal-that's common courtesy.