This is my source. I calculated PAR on the well known 8:9 value for 4:3 NTSC. I have also tried the 4320/4739 PAR on other similar sources (NTSC DVD with black bars on both sides) but they looked better in 8:9 (checking some circles of the footage and general appearance).
guth: Thank you, yes I tried to just input the value, and I got the same PAR I originally had in the .m2t (1.5 DAR), with 0.912 I was getting 1.4xx instead of the original 1.5, but I was unsure if it had some relation on the PAR value.