The HM100 camera's firmware originally only was able to use class 6 cards, Now, thanks to the firmware upgrades, Chris and the team can use class 10 cards, they are currently using 32GB SD cards, which will allow them to record up to nearly 2 hours of footage, compared to the 27mins of footage the old cards would hold.
Chris and the team upload all The Geek Group videos to their YouTube channel here
, Why not check it out? You can also visit their website here
, you can also become a member of their forums, we would love to see you in there.