Ok So I feel a bit stupid, especially having read the opening thread. But I think I might have bought a counterfeit or dud card as when I put it in my Panasonic Ag-Af100 it says check card and won't let me record. Is there something I am missing, or have I just bought a crappy card. I'm afraid it was off e-bay.... it did only cost me £25 (for 64gb).... and it's made by a brand I've never heard of Busbi, who I am now going to Google. Any help for this newcomer greatly appreciated.
First up NEVER buy memory cards off e-bay. Known loads of ppl to come unstuck with that.
Secondly I use Busbi cards all the time. They sell them at Play.com, but I don't have an af101 and I only ever use the 16gb cards on account of them being sdhc and not sdxc cards.
Your card could be a fake. It's easy to put a sticker on there or it might just need reformatting if it is second hand.
Have you tried it in a card reader on a PC or anything?
love
Freya