Burning a DVD rips to a DVD at same quality?

[TBC Hitman]

Hi
I download all these DVD rips and they look really good when you watch it on the PC. But when i burn it to a DVD and play it off my DVD player on the plasma the quality turns really.

If the dvd rip is 640x270 screen resolution is there a software where i can keep it at that.

Cause i burn it using Convert X to DVD, at 16:9 and play it on my plasma.

I want something that will keep it at the same quality you get when you watch it on your computer.

Thank you

[m1o1e1]

my dvd player plays divx..
so not is it only the same quality, but it's also the same file..
that's the only way to keep it at the same quality, because every time that you re-incode it you're going to loose some of the quality..