I prefer OWC (other world computing) - it's cheaper than Crucial and you can still select your notebook pretty easilyI'd recommend going to Crucial.com to buy memory. It's relatively cheap, and you can choose exactly the right memory stick(s)/kit you need for whatever Mac or PC you have. Works well for me.
to answer your question, not really. Just make sure you're buying ram from a reputable source... and that the specs match exactly what apple's standards are.I'm looking into buying memory for my Mac Book Pro. I was looking on newegg for some and I noticed there's laptop memory and then mac memory. Is there really a difference between the two? Thanks.