Jeremie, thank you for your comment. It still sounds like quality is sacrificed for file size at 60 FPS. If certain bit rate provides sufficient quality we still should end up having this bit rate for both 60 and 30 FPS, therefore 60 FPS files should be twice the size of 30 FPS files. If this is not the case (60 FPS size < 2 * 30 FPS size) then it'll be like saying that certain bit rate is good for 30 FPS and then all of a the sudden a much lower bit rate is good for 60 FPS, which would not make sense.
Either way, I understand that Blackvue will unlikely change their priorities just because of this thread, but do you think if it will be possible to allow users to chose whether they want to prioritize quality over file size or vice versa (thorugh settings in firmware)? As it stands, I could not care less about wi-fi functionality or file size (128 GB should be good in any event), but I do care about quality, because quality is what determines if I will be able to read the license plate of another car or not.