Hi
I started with DVD players initially and moved from owning several models of Pioneer as I feel they do a good job in terms of Video imaging output as well as audio....DV 400 then DV 420 then DV3032....one thing I realised is that formats keep changing in the world of movies and music....although most DVD players would have a USB slot where a pendrive can play songs or movies...MKV formats don't work....this then made me decide to move to a Blu Ray player....I guess the best entry level blu Ray for Pioneer would be the BDP 150 or BDP 160 which plays all formats of audio and video and is upgradable (firmware via download from the net) These players have USB slots where you can connect pen drives...portable external hard disk upto 1 TB ......it runs fine....
Hope this helps...