nobody asked for it but here you have it anyway.

so the opening movie is a simple mpeg1 encoded clip with mpeg2 audio, wrapped in a .DAT container.
i just ran it through an upscaler and reencoded it back into 320x240.
same bitrate but since its most likely untouched from 2003 it had not the most advanced codecs available.

my final video is the same filesize, same resolution, but has smother edges, a bit more details and optimized compression.
very minor things, but it works.
i wish i could have used like 640x480 but the thing is, when the game plays you literally will just see the upper left corner of the video, that is the reason why it has to have the same low resolution.

so if anybody is interested, just put the file in your BOF4 XXXX\Breath of Fire IV\MOV folder
backup your old ZBOF4.DAT first.


file: https://drive.proton.me/urls/S2Q05XMRQM#C4tZEWrVgHDl

5 comparison frames:
https://drive.proton.me/urls/SAFHY6GAQ0#FMrY0oy6pERs

Thanks, much appreciated!
Probably still too subtle of a cleanup for most eyes though.

This is amazing! I was just talking about this yesterday on the Legacy Issues thread

Curious if we can reencode the audio file SE.DAT to employ reverb.Is it mpeg2 audio?

SE.DAT

contains the audio in MPEG Audio Layer 3, meaning mp3. (128kbps stereo) in ONE big track

so technically you could put a reverb on it and reencode it into a .DAT

i am not very versatile in audio engineering to recover audio quality, put reverb on which part of the audio is wanted.
128kbps is already very lossy mp3 quality. we talking about a codec version that is roughly 24 years old and had not improvements etc
here the extracted mp3. no reencodings done just pure extraction of the audio.
https://drive.proton.me/urls/S079G01XRG#wUQ2LLq6J0M2

Thank you! How are you extracting these audio and video from DAT files?

with ffmpeg
when it detects inside a file actual media, it most likely can extract the audio and just wrap it in a more media player friendly container.