Sorry for your trouble. There’s nothing “normal” about a 10 hour conversion and I suspect there is nothing wrong with your system.
My rig is fairly close to yours…a 3 yo custom build, P4 3GHz, 2 GB corsair DDR RAM, 4 SATA hdds, running XP Pro SP2.
A far cry from leading edge, but hardly a dinosaur.
My times are as follows:
DVD to DVD…10 - 20 minutes total rip and burn.
DVD to Ipod mpeg4 ((h264 + aac profile) about 1 hour or less, maybe 1 1/2 on a few flicks.
Just tried BOONDOCK SAINTS with this profile…encoding 50-60 fps…sustained
So I tried the same flick with xbox360.wmv (default settings).
It seemed to start off ok, but dropped like a stone.
Within 5 minutes it was < 10 fps and still dropping.
I’ll try to get Ting (Fengtao’s DVD to Mobile guru) to take a look.
In the interim, maybe signals or one of the other knowledgable “Mobile” members will have an idea.
Sorry I can’t be more help, but I don’t know beans about this.
But it’s definitely not you or your rig…