Recording Car Cameras: What to Check Before Buying

Most dash cams record continuously in a loop while powered during driving. Parking behaviour depends on the power connection and selected mode.

Loop recording normally overwrites the oldest unprotected files. Protected files can also consume space, so follow the maker's card-maintenance instructions.

Use the event button or app as instructed, then copy the original file to another device as soon as practical. Avoid repeated use of the card before securing the clip.

Many dash cams have a microphone that can be disabled. Audio recording raises privacy and surveillance-law questions, so check the rules applying in your state or territory.

No. Distance, motion, angle, glare, darkness and exposure can defeat even a high-resolution camera. Treat resolution as one factor rather than a guarantee.