The longest HD recording I've seen so far with the Proto X FPV. I wasn't flying too aggressively to see how long I could record. I used a 32G card to get such a long recording. You can actually record a lot of HD videos with the 32G card. You can only get about 1:50 of HD recording on any size card including the 32G card if you format your card to the transmitter and then put it in the quad, so don't do that. Longer videos can be made by recording from the transmitter but they are not in HD and is not suggested for wide open areas or filming things at a distance. The best way to not have text in your video is to have a card formatted in the transmitter and another card the quad itself for HD recording. HD quality recordings only come from the card on board the quad.