Best way to play media files on OpenPLi 2.1

I have a brand new ET5000 box and a fresh Open PLi image installed OpenPLi-2.1-beta-et5x00-20120109.
I place a few media files on my USB stick (jpg, avi,mkv, mov, mp3, wav, ) and want to play them all nicely on the box, preferable from one single GUI.

My main question is what's the best way and tool to play media files withing this setup?

To make default media player working for me I need to fix some issues I found.

1) Once I insert USB stick into the box a popup message comes with "No displayable files on this medium found".
I assmue I shuold see the list of my files or at least their number, right.
Media Scanner plugin is installed by default.
Please advice how I can fix it.

2) Is there an aeasy way to play the entire folder of mp3 or / and video files (one after another) and not push OK button to play every file?

3) Is the a way to request song/movie info from Internet automatically while it's playing?

4) Is there a way to display albums covers

5) Is WAV file playback possible?

6) how to start DVD (VIDEO_TS) playback?

7) Is there a way to make media player to display photos (jpg)? If not, why it's called Media Player?

Please also advice if exists better alternative, other tool/plugin I can use to play all media files from one single GUI

Thanks in advance