Went to the IT Show yesterday, intending to buy a 32gb micro-SD card for my Blackvue. Was told it is advisable to get a Class 6 card. But the price diff between Class 4 and Class 6 is huge.
32gb class 4 = $39
32gb class 6 = $79
The price diff is ridiculous.
Didn't want to be a sucker. I put off the purchase. Did some research. Found out that Class 4 is good enough for HD recording. www.sdcard.org/developers/overview/speed_class/
I did an experiment. Took out the 4gb Class 4 micro-SD card from my Blackberry. Format it to install Blackvue firmware. Did a few minutes of normal recording. The video quality was good. No jerky recording. Everything looked good.