If i was you Sony007 i'd convert your x-vid to mpg m8 useing tmpgenc. But first make sure you have all the codecs the film requires use g-spot to check the films codecs, This prog will also show you wot codecs you have installed. 23fps is ntsc frame speed tmpgenc will also altar this. If you find your tmpgenc doesn't reckonize the xvid use these settings in tmpenc
1) Open TMPGEnc and press Cancel if Wizard pops up
2) Go to Option->Environmental Setting...->VFAPI plug-in
3) Adjust the plug-in priorities (this is done by right clicking on
the plug-in and choosing Higher priority as many times as
necessary) to match the following:
DirectShow Multimedia File Reader3 (normal -1)
AVI2(OpenDML) File Reader........1 (normal 0)
AVI VFW compatibility Reader....0 (normal -2)
CyberLink MPEG-2 Decoder.........0
Microsoft MPEG-1 Decoder.........0
Wave File Reader.................0
BMP/PPM/TGA/JPG File Reader....-2 (normal 0)
DVD2AVI Project File Reader 1.76+.-2*
TMPGEnc Project File Reader 2.58....-2*
I then use Nero to burn to disc.
If you want to see a TUt on tmpgenc i've knocked up a simple step by step here
http://slingshot.to/mrdead
Mr Dead