For reproducing exact hashes for the PCem Late 80s setup.
! Version info:
libTAS version: 1.4.1
! Annotation info:
{{OS: Ubuntu 20.04.1 LTS, Linux kernel 5.4.0-59-generic libTAS: Version 1.4.1 interim 7e2a5bf6 PCem: TASVideos branch v17_13f53a2, commit 55f0fdb3b83e983646e7b5dcc6dbae5f5e2ee06b
Follow these instructions up through the Diagnostic disk section: http://tasvideos.org/EmulatorResources/PCem/DOS.html#Late80s
Download FD12LGCY.iso (md5: a55750577b4c3b88dba489df4f929f88) and extract FLOPPY.img (md5: 36689ac4152d8efb13ab230e9aea46ec) from FDFLOPPY12.zip from here: https://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.2/
In your .cfg file, set disc_a = {path to diagnostic disk};{path to FLOPPY.img};{path to unmountable file}. The unmountable file can be any existing non-image file (a file that doesn't exist will not work); this is necessary because when PCem tries to mount it, it fails and ejects the floppy drive, and this is currently the only way to do that.
Also in your .cfg file, set cdrom_drive = 200 and set cdrom_path = {path to FD12LGCY.iso here}.
In ~/.pcem/pcem.cfg, set confirm_on_stop_emulation = 0.
UNCHECK RUNTIME -> PREVENT WRITING TO DISK OR THIS MOVIE WILL DO NOTHING!
Set game executable to your pcem path. Set command-line options to --config {path to your .cfg file here} and then run the movie. On the last frame of the movie, stop PCem through libTAS (WAIT FOR IT TO CLOSE, DO NOT KILL).
This should leave you with these three files from the Late 80s premade config:
.cfg file in ~/.pcem/configs/ - Hashes for this will vary because file paths/names will be different for everyone.
.nvr file in ~/.pcem/nvr/ - md5: e32d409f6f822aab0834b6661823c8c3
.img file wherever you originally saved it - md5: 257208622a9d51f5504eacdabd161955}}