Cheapest good sounding dvd player?


I want to watch and listen to some concert dvds but my little player produces very poor sound. What do you think is the cheapest available dvd player with better than minimal sound quality.
I do not need any 'features' beyond stereo rca outputs and rca 3-line video outputs.
rpfef
I asked about the CHEAPEST machine with "better than minimal" sound quality.
I am not seeking "the best cheap unit." I seek the cheapest "good" player.
Even used, OPPO units cost a few bills.

How about this:
What's the best player I can get for under $150.
You can find an Oppo DV-980H used (it's several years old) well in your price range. It sounds great, and has excellent DVD Video quality.

Michael