Well here are few more points/clarifications
–While the video is playing, there is no time/clock on the video.
–The clips are on the same day within 2 hours duration
–Video format is MTS
–The dates and times, I am talking about are from the file system only.
Some questions
–How do I find the metadata associated with the video clips?
–The file system date modified is time stamped. Is it the end time of the video or the start time of the video?
–can the file names and date-time stamp be changed?
You say the dates are just from the file system. Are you looking at the camera, or files copied from the camera?
Does the camera have a memory chip, or internal drive?
Ideally you require a forensically secure image of the original drive to see how any dayes have been changed.
Dates and times of file are very easy to change - and sometimes not intentionally.
The camera wil be implementing it's own version of I presume FAT32. You will have to test with the camera if the file system dates represent the start or end of the recording. Also you will need to verify with the camera if the file system dates are accurate, or consistant. Try after a power cycle, it may produce odd results.
Meta data
The MTS video stream does not (as far as i know) have an real date and time. There is a field in the .MTS stream that gives time from the start of recording. The last video I looked at, this time started from zero for each recording. Each 0xc0 byte record has an incrementing field at the start, often incrementing by a fixed value of 0x8d0, 0xx6c0, or small multiple of the same.
One area to look at could be the .CPI file. This does contain index info, but I am not aware of a date.
The .MPL file does appear to have a date field. The format in the sample I saw was
0x20 0x11 0x07 0x27 0x21 0x52 0x14 which could be 2011-7-27 215214 but that is just and educated guess.
Noelz are you able to inspect the camera itself?
Every other question is kind of irrelevant until you know if the camera internal clock is working, and how it interacts with the videos it is making.
For all anyone knows at this point the internal time/date function of the camera has never been set so every time it takes a video it starts with the time stamp of 9am on the relevant day (assuming the date is correct).