When I first got this phone, I put in an older microsd card I had. At first I put the camera to record to the card directly, but it took FOREVER to write a single picture if it was on the highest quality.
I just bought a new microsd card. I did some research, I found out that the CLASS defines the speed of transfer.
CLASS 2 : 2 megabit
CLASS 4 : 4 megabit
I went to Fry's, and found a 4 gb patriot card, a class 6.
Now I can record a video at the CIF resolution ( 352x288 ) in a second or two. I can't tell the difference between RAM and the card.
Here's some instructions on the higher resolution:
http://forum.xda-developers.com/arch.../t-328050.html
When it comes to microsd cards
GET SOME CLASS