Ed,
Actually, your rendering parameter should be fine, since you are rendering from 
within Cinelerra.  (I had initially thought you were rendering outside of 
Cinelerra).  I do notice that your bitrate is extremely high.  That shouldn't 
cause a problem in itself, but I've had crashes when using high bitrates like
that.  You may want to use a lower bitrate or a more common render setting that 
you know works, just to confirm if it is a problem in the timeline or the 
rendering parameters.

Also, I've had crashes due to problems in the timeline when rendering hour 
plus video out of Cinelerra for the following reasons:
-a bug while stacking video effects (specifically, when the Sharpen effect
was at the bottom of a stack of six other effects on a video track)
- there were breaks between clips on the rendered video (if you zoom in all 
the way on a track, make sure the clips are aligned next to each other)

Here's a couple tips from my Beginner's Guide to Rendering Video 
(http://crazedmuleproductions.blogspot.com/2007/06/beginners-guide-to-exporting-video-from.html)
1) Keep the start and end of your video and audio tracks perfectly aligned. 
Make sure to zoom in to less than five frames to verify this.

2) Also, I've gotten crashes if I have a transition that overlaps a very short 
bit of 
empty space between two adjacent audio or video clips. To stop this, I will go 
to the end of a clip, zoom in all the way, and make sure that the video and 
audio 
tracks end at the exact same time. If they don't end at the exact same time, I 
clip 
off a bit of whatever track is dangling by using the mark in/mark out 
indicators and 
doing a "cut". I can then be assured that when I paste a new segment to the end 
of 
this recently snipped one that the segments will align perfectly. Once the 
segments 
are aligned, I then apply the transition.

For troubleshooting purposes, try to hone in on the exact moment in the timeline
where the render breaks.  I found the Sharpen effect problem by rendering the 
first 
half of the video in the timeline and then successively rendering smaller 
sections 
of the timeline until I found the exact place in the timeline where the render 
is 
breaking.  At which point, it is a matter of either finding a hole in the video 
or
turning off effects/transitions until your render tests work without crashing.

This time consuming; however, if you've spend a lot of time editing, it is the 
only
way to salvage all your hard editing work. 

scott

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