upscaled DVD's look horrible, what's going on?

I've finally settled the overscan issue and am dealing with a 1" underscan instead. Now that I have that issue resolved, I'm trying to figure out why my dvd's look so bad...

I'm running wmc 2005 with wmp10 with the latest and best drivers from nvidia (30-day trial version for now). VC is a nvidia 8500gt.

The problem I'm having is any type of text or edges in all my DVD's are either extremely jaggy or blurry. Trying to slide the nvidia sliders to adjust doesn't work very well, leaving a horrible picture. I've tried using a couple drivers from free-codecs.com but it seems none of them are compatible with windows media player 10 - or they aren't doing anything different.

I thought I had everything set up correctly but maybe not... What plan of attack should I take here, my tv is a DLP and I want these dvd's to look like near hd quality.

I have an hdmi cable connecting to a dvi adaptor to the pc input of my hdtv.

yes, it's set using the 1080p output and everything looks absolutely fantastic.... except dvd's/video's.

I'm not at home right now, but I think you're talking about the setting w/the rotating graphic? If so, it's set to quality.

Yes, that's what I'm referring to... Are their better free ones that work w/windows media player 10? The ones I've tried weren't... or if they did, they didn't look any better at all.

the set is 1080p, to my knowledge nothing is being down rez'd. This problem is only happening on the dvd's I've tried... everything else looks fantastic.

Mitsubishi WD-57732

could this be a wmp10 thing? Is wmp9 what everyone is using?

The pure Nvidia codecs are a direct plug in for windows media center and it's dog poo!!! Can i replace them with Theatertek? or do I need them too? Do I need to have anything else setup with theatertek?

I ended up using Theatertek's trial version last night and it was a big improvement. It was kid of a pain to get it from not opening when I put a DVD in and letting Media Center do that instead. Overall The picture isn't much better then the standard 480p signal my xbox360 outputs (probably the TV upscaling it).

I'm going to uninstall everything and download/buy 2.6 and install the latest ffdshow codec. The instructions for this must have had a different version then the one I had because some of the options weren't in there. fingers crossed... I'm such a noob!