If dvd lang po isasalang nyo sa bluray & sa dvd na hdmi (with upscaling), same quality po makukuha nyo.
This is not entirely true. Up-scaling functionality and quality of different BD/DVD upscaler are different. They provide different upscaling algorithm, chipset and scanning method.
I have Pioneer DVD HDMI, Extreme DVD HDMI, Samsung DVD HDMI HTIB and Samsung BD-D5100. When I played back DVDs in these player, the Samsung BD-D5100 produces way way better picture quality compared to others. Next is Pioneer DVD HDMI player, then Extreme DVD HDMI and last is Samsung DVD HDMI HTIB.