How Long Can an 8GB Memory Card Record on a Dash Cam?
3 Answers
Generally, an 8GB memory card can store 80 to 200 minutes of video footage. The exact recording duration depends on the size of each video file. Installing a dash cam in your vehicle is highly recommended. More information about dash cams is provided below: 1. Introduction: A dash cam is a device that records images, sounds, and related data during vehicle operation. It features video recording and playback functions, effectively preventing disputes during driving. 2. Function: After installing a dash cam, it can record the entire driving process including video images and audio, providing crucial evidence for traffic accidents and safeguarding the legitimate rights of vehicle owners.
I'm the kind of person who enjoys tinkering with gadgets, and I've used dash cams multiple times. An 8GB memory card isn't very large, and the recording duration entirely depends on the settings. If you're using standard 720p resolution, each hour of video takes about 1-2GB, so an 8GB card can record approximately 4-6 hours. However, if you switch to 1080p HD mode, the file sizes increase, consuming 3-4GB per hour, which might only last 2-3 hours. Some newer models use H.265 compression, which saves some space. Personally, I think an 8GB card is fine as a backup, but it's insufficient for long trips—I'd recommend upgrading to a 16GB or 32GB card. Don't forget to enable loop recording, which automatically overwrites old footage to prevent the card from filling up and stopping recording. Regularly check the card's health, as prolonged use can slow down read/write speeds and affect performance. When choosing a card, opt for Class 10 or higher to ensure smooth recording.
After driving for so many years, choosing a small memory card for the dash cam is not an option. An 8GB card doesn't record for long; when set to 1080p HD, it might fill up after about 3 hours of recording. On long highway trips, if you're not careful and the card gets full, you won't have evidence at critical moments. I usually set it to 720p mode—the video quality is sufficient, and it allows for more recording time. With a small-capacity card, you need to frequently check the storage and format it; clearing it once a week is safer. Don't forget to enable loop recording so new videos overwrite old ones without interruption. Nowadays, a 32GB card costs just a few dozen bucks—buying a larger one saves hassle. Also, don't cheap out on off-brand cards, as they carry higher risks of slowdown or damage. Regularly back up important recordings by exporting them to a computer or phone to avoid data loss.
