Share your experience!
microSD card can be broken.
Most cheap cards have low quality, and so data loss or partition loss.
Be sure you use a microSD SDHC card from a good manufactorer, and so not the cheapest ones.
Also be sure it's class10, so that the bandwith is high enough for playing HD video.
The most important thing is a high speed card for recording HD or FULL HD,not for playing.
Anytime.