Also some people (including me) to avoid fps drop because fraps is recording, record a demo and then, play it and record with fraps.(click to show/hide)
-record (file path where you want to save it) An example:-record D:/zv1/Demos/ultimojuego(where "ultimojuego" is the name of the demo)D:flashIDENotice that the demo name is automatically named by the IWAD (megagame.wad) and the PWADs (mm8bdmv2b.pk3 and others). The subsequent demos won't overwrite the old ones.