The previous version of this article said, in part,

LMP files can only be played back with exactly the same version of the DOOM engine (or Source port as the demo was recorded with. In most cases, this is Doom 1.9.

I removed the second sentence and replaced it with

A demo downloaded from the internet at random will usually be vanilla v1.9 or v1.666 format, simply because the height of Doom's popularity occurred at that time, before source ports existed.

This is merely a guess at what the original author meant, of course, but at face value it seems like a reasonable statement.    Ryan W 06:26, 28 December 2007 (UTC)

Merged LMP article content

One thing I removed when merging earlier was the first paragraph from the LMP article (it seemed like an unwarranted and non-encyclopedic way to start the subject), and the local paragraph about demos desynching when loading the IWAD as a PWAD and whatnot, as that's incorrect. Those demos desynch because a different executable version is used (between v1.9 and v1.9f), and not because of the way the IWAD is loaded. Who is like God? 22:53, 20 March 2008 (UTC)

Maximum LMP size

IMHO this should be discussed here, but apparently no data is given in any of the places I would have expected it (r.g.c.d., Uwe Girlich's tabulation, etc).  It may depend on version and environment: [1].    Ryan W 21:53, 23 September 2008 (UTC)

It's a rather tricky aspect. Running Doom2 on Windows 98 I've been able to use -maxdemo 4096, but it fails sometimes when adding a PWAD or the like, where something like 3072 seemed to work. Who is like God? 22:03, 23 September 2008 (UTC)