video was recorded by jvc video recorder capturing tv source. pal format, so 25 fps.
it was created as a "dvd" by the recorder, ie under a "VIDEO_TS" folder and as vobs.
i'm not that video technically aware, so said mpeg - to me, they are similar though i'm sure experts will tell me otherwise.
after recording, i demuxed it into video & audio using pgcdemux.
then used those parts to author a new dvd (with multiple episodes) via dvd lab pro 2.
i don't know for sure, but i doubt pgcdemux and dlp2 did anything to the files.
plus, i was a bit loose/casual with the 1-to-2 seconds remark. it is probably sub-1 second. i know, i know, i have to be more specific when asking for help. apologies to everyone.
bar the above information, i really do not know much else about the video. i have not learnt about GOPs and bitrates and all the other video stuff. all too technical for my pea sized brain to digest.
ok, give me some time to DGI cut the problem area and upload it.
thanks for your help. much appreciated.