After much hesitation about buying an onboard camera or dashcam, I opt for the HP F310 model. I'm not disappointed with this purchase. I fumbled a bit at first, as I followed the "fast" instruction manual. I recommend above all not to insert the micro card but immediately set the language "French", then no problem, you stop the camera by pressing the start / stop button. you insert the card again and turn on the camera and everything is done automatically setting the time and position of the GPS. Then you format the card. I used the camera continues on highway 317 Kms with stops; And cutting voluntarily, at that time, the camera instead of letting engage in the automatic detection recording. I use a 32GB SanDisk Extreme SDHC Class 10 (purchase on amazon). The recording of my travels has used less than 13 GB of the 32 GB recording in HD 720 instead of 1080 HD (I do not have a graphics card in 1080), for a period of 3 hours 17 minutes 36 seconds. Another tip in my preliminary tests I've realized that we should let the WDR because in cons day the image is dark and almost illegible; facing the sun, in tunnels, in the forest. The internal battery held a little less than thirty minutes when used for automatic detection in a parking lot. So I ordered from amazon plugging an external battery with the USB cable supplied by HP. It is written in the manual states to plug the plug into the cigarette lighter and then put the vehicle in motion. Having grilled permanently connected devices (icebox among others), I plug my camera once the engine switched on. In the movie, the program provided on the CD does not work with my old graphics card. So I use Registrator Viewer (in French and free) with him no problem reading the film is set in line with the GPS position I highly recommend it. For the positioning of the recording, I placed myself with the sun on the left side and I swerved the camera to have the least reflection of the dashboard on the record; it takes much fumbling to have a good result. I hope my information may be used to prospective purchasers or other owner of this model. As soon as I can, I will order another for the rear registration.