How do I know if a movie is High Definition?

[bobcarla]

I got a Pansonic DMPBD10AK player yesterday and was very disappointed to play two blu-ray discs from Netflix (The last waltz and 28 Days Later) which were not near to being high definition.

I went down to Blockbuster where the clerk told me that Closer and 3:10 to Yuma would play much better and they did.

Apparently some blu-ray discs are just reformatted from standard DVD format (I am not sure whey).

Is there a way to know when ordering from Netflix or do I need to check with the recommendations onf Blu-ray.com?

Thanks
bobcarla