Ok, here's the problem, and it is an annoying problem:

Basically, I am using two programs. I have duplicated the same DVD with every feature in both Apple DVD Studio Pro 1.5 and DVD Lab 1.1

I build the DVD and burn it to a DVD-R with Nero.

Now, here's the very strange part. If I copy a DVD using a cloning program (my own DVD's, not rentals, mind you :P ), then the DVD plays both on my XBOX and my set top JVC DVD player perfectly, without any error.

When I burn my own produced DVD's (via DSP or DL), it will only play in my set top, but my XBOX cannot read it.

That's not the main problem though...

The video stutters on my JVC player and my neighbors Sony player, using either project.

When I exported the M2Vs in Premiere (via their own very nice plugin), I limited it to 6mbps, well under the 9.8 mbps limit for DVD's.

The DVD only has one video track (no angles), and one stereo AC3.

When I activate the display on the DVD player, it only reports a spike of 6.2mbps, but stays under.

So I can't see why the video is stuttering. If I play it on Power DVD on my computer, the video does not stutter.

Any clue as to what might be casuing this?