DVD players are basically worthless nowadays. You can grab older higher end units for peanuts. The problem mighty be the age and potential issues with lasers. I would probably look for a decent Bluray player instead, like for example the Sony x800m2. It will read both Blurays and DVDs but will offer more flexibility in terms of scaling, apps and audio formats.

HTPC, HD621, 861v6, Pathos Cinema X, Kinoton Cinema 200, JVC X7900