Hi all, I recommend capacitor model DVR and I am selling it.
https://forum.lowyat.net/topic/3202199
PM me if interested. Thanks.

Most probably is the power cable problem not the DVR if the DVR keep on restarting.
Sometime is adapter longgar. Try unplug and wait a while then plug again.

Capacitor last longer than battery in term of lifespan is charge cycle not power capacity or day storing the setting.
If it is not daily drive car can consider battery instead of capacitor.

1. Missing frame only appear in low budget DVR. Mean the processor is too slow.
Some DVR will have extra frame. The second video will overlap 1 second with the previous video.

2. Video file corruption will occur if sudden lost of power (bad battery, normally last video corrupt) or using faulty/fake/slow MicroSD card. But also possible is hardware or firmware problem.

3. Make sure the DVR is stick firmly and the lens is clean.

4. You need a better DVR sensor for night.
If both cars is moving in very different speed surely the plate number can't be see.

5. You set the "Motion Detection" on? Set it off.

As I know G1W fulfil all the requirement except no.4 cause not sure how good the quality you want but G1W already consider quite good in night .

Make sure buy the real one. The is a lot of DVR in market all sharing the same casing.
Read the specification and buy from reputable seller.