by Kanti13 » Mon Dec 21, 2009 4:02 am
This is the least comprehensive answer ever but as a quick fix, if you're having a problem with something fading out instead of cutting off, just put the next clip on the layer above it on the timeline. If the next clip is the same one and you just don't want it to fade, put the same clip on two tracks and apply the effect to the one underneath. Cover up the fading out footage with the clip without the effect.
You will probably need to learn more about keyframing and masking but this might help you at the moment if I understand the problem...
Always remember to think in layers!