create an avs with DirectShowSource

[audi]

i am trying to make an avs file for a mpeg 1 that i have. i want to use gknot to encode this but all the instructions i have found on the internet are overwhelming can someone simplfy how to do this.

[Enchanter]

A basic script for opening MPEG-1 files goes like this:

DirectShowSource("file location")
ConvertToYV12() #Required for Avisynth 2.5

One advice: unless you intend to use certain Avisynth filters (whose Virtualdub filter equivalents happen to be unavailable), I recommend using the more reliable method of opening the MPEG-1 file straight using Virtualdub.

[audi]

here is my problem i made this script from a kvcd that i had.

LoadPlugin("C:\mpegdecoder.dll")
MPEGSource("C:\ripping\AVSEQ01.DAT",-2)

ok it loads into vdubmod perfectly. I did this ( video -> fast recompress -> compression -> xvid -> 2pass - 1st pass -> the settings -> file -> save as -> choose the file name) but before it starts to encode i get an video compression error (code -100)

any idea whats going on or what this error means .