These are some example command-lines (batch files contents) for playing and recording Doom demos. These are some of the ones that I use, perhaps they will help you to play/record demos. Doom: doom -record opdemo -warp 2 6 -skill 4 -file classic6.wad -maxdemo 1024 doom -playdemo e1m1_009 doom -timedemo e4m6-556 doom -file red.wad -playdemo reduvlmp -iwad doom.wad Doom2: doom2 -file darken2.wad -maxdemo 1024 -record opdemo -skill 4 -warp 12 -nomonsters doom2 -maxdemo 1024 -warp 17 -skill 4 -file perdgate.wad -record oplmp doom2 -file darken2.wad -playdemo dark doom2 -timedemo 30nm4000 Boom: boom -file sprike.wad -record spop -maxdemo 1024 -skill 4 boom -file phtga.wad -playdemo opdemo -iwad doom2.wad boom -file impatak.wad -deh impatak.deh -fastdemo opdemo PrBoom: prboom -width 800 -height 600 -fullscr -file pax.wad -record opdemo -skill 4 -maxdemo 4096 prboom -width 800 -height 600 -fullscr -iwad doom2.wad -file phthp.wad -deh phthp.deh -playdemo opdemo prboom -width 800 -height 600 -fullscr -file phtga.wad -record opdemo -skill 4 -maxdemo 1024 -warp 30 prboom -width 800 -height 600 -fullscr -file darkstar.wad MBF: mbf -iwad doom2.wad -playdemo 30uv1617.lmp Zdoom: zdoom -width 800 -height 600 -fullscr -nomusic -iwad doom2.wad -file cresta.wad -playdemo opdemo.lmp zdoom -width 800 -height 600 -fullscr -file atbeta.wad -skill 4 -nomusic -iwad doom.wad -record opdemo -maxdemo 1024 Doom95: (If you are recording with doom95, I urge you to install the real game and record with it.) doom95 -record dm2m7 -maxdemo 1024 -timedemo doom95 -devparm doom95 -skill 4 -timer 5 -warp 5 -nodes 2 -nomonsters -maxdemo 1024 -record dm7 -file red.wad