I ordered one and received an 808 #25, a low quality MJPEG camera. I submitted a "not as described" dispute at e Bay and got a full refund from the seller. The overrun might cause an increased missing frame rate or other problem.
Video in 480p is mostly MJPEG, never H.264 and the #7 used Xvi D. A class 4 or faster card is recommended, but faster than class 4 usually does not improve things, and some class 10 cards have been known to cause some problems.
Compare a video frame from your camera to frames in this table, or try this table.The light weight of the 808 means that you can expect a lot of video camera shake distortion when hand held.Mount the camera to something or add some weight to it to reduce this problem. Without case and without battery, about 6 grams, hence good for small RC. You can try to ask your camera seller a question, but good luck with that, as many sellers don't know much about the camera. To contact a producer, send an e Bay message with your business proposal or question. The solder joints might need to be re-soldered using solder flux. There are forums for many 808 cameras where users help other users with questions so try to get your questions answered there. Crystals - The crystals (silver or black can with two wires) are difficult to hand solder, repel solder and the solder joints have been defective and intermittent.