A bit of advice to anyone using a dashcam. I see a lot of people complaining that theirs is playing up, and other advice to regularly reformat the card – which seems to get a lot of people recording again. I strongly believe that part of the problem is with the card, and not the dashcam. Specifically, people are using the wrong cards.
I have always used SanDisk Extreme cards in my dashcams, and I have not had any problems. Extreme cards are not the cheapest, either. They’re pretty high spec. However, I recently wrote to SanDisk and asked them if Extreme cards were OK to use in such applications. Here is what they replied:
Thank you for contacting SanDisk® Global Customer Care. Please allow me to inform you that for Dashcams & security surveillance cameras, we recommend to use SanDisk® High Endurance Memory Cards since these cards are specially developed for high endurance applications and continuous read & write cycles. These cards are built for and tested in harsh conditions and are temperature-proof, shock-proof and waterproof.
Also, please be informed that using Extreme or Ultra line memory cards on these devices void their warranty.
At this point, it is worth noting that “high endurance” cards are special cards. They’re not easy to get hold of except through specialist suppliers, and your local Currys is unlikely to have them in stock. They cost more than normal cards.
But the upshot is that using Extreme (i.e. high-end “normal”) cards puts them under stress that they’re not designed for. It voids their warranty, but – more importantly if you read between the lines – there is a good chance they will malfunction or play up. I don’t know much about cards from other manufacturers, but I would lay odds that most people with dashcams are using the cheapest card they can find, and that means they’re not “high endurance” types. Most of the time I see people asking what dashcam to choose they always want a cheap one, and the one they end up buying often costs them less than I pay for a SanDisk Extreme card – so there’s no way they’re going to buy a card even close to that.
My current dashcam is the NextBase 612GW. It records in 4k, and on cards up to 128GB (so I get about six hours of footage in a run). I have never had any problems with Extreme cards, but after the SanDisk advice I invested in a Samsung 128GB high-endurance card.
NextBase doesn’t seem to want to enter into discussion over this and insist that all their devices work with Extreme cards. Their own branded cards appear to be rebranded SanDisk ones. I don’t disagree that Extreme cards have worked well for me, and probably for everyone else when they’re new. But the niggling problems people keep reporting might not be doing NextBase any favours, because I firmly believe that a lot of the reported “faults” are down to those cards protesting at being used outside of their specification, with the user blaming the dashcam.
SanDisk high endurance cards only go up to 64GB at the moment (SanDisk said they’d feed back to their technical people on that), though other manufacturers (e.g. Samsung) produce higher capacity units.