how do i get speedrun to work?

i downloaded a speedrun and its called scyth.wad.... how does it play? i guess its doom2 -rundemo sythe.wad or something, but i dont know.

If it's a doom2 demo then:

doom2 -file scythe.wad -playdemo (name of demo minus the .lmp suffix)

Note: The scythe.wad and demo must be in your doom2 folder.

I assume you are downloading from http://www.doomworld.com/sda/scythe.htm .
The .wad files are the maps. The .lmp files are the demos.
As Rich said, you can playback the demo with
doom2 -file scythe.wad -playdemo <demoname> (with no .lmp on the end)

You can download Scythe demos directly from:
http://competn.doom2.net/pub/sda/p-s/
http://competn.doom2.net/pub/sda/p-s/sc_lmps.zip is a good one to start with.
Let me know if that doesn't work for you.

I'm surprised Ryback never uploaded his -fast run over map30.

I did. It's in the pack. You've just got to search a bit...

(hint: one of the demos doesn't work.)

this works... i run winxp and it is kinda slow. i tried zdoom with the same commands but there is an error message: sth like v1.9 does not support demos. Is there another win port, which works good with demos?

Zdoom will only play back demos recorded with Zdoom.

use Prboom or Eternity if you are stuck using WindowsXP.

hmm, /me fails to find the map30 -fast in the pack.

Further hint: the demo that doesn't work isn't listed in playall.bat

(someone's going to get this eventually!)

ahaha, I found it =)