Whats the difference between all these files? 

The differences are in the text files that come with the game.

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DynRPG edition of DBZ LOZ

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DBZ LOZ w/ extra features:

    -PC Only

    -60fps with visual filter

    -monster health bar,ATB bar

    -play time displayed on menu

    -no auto-battle

    -Errors don't close game, restarts it

    -Hold SHIFT & press Enter to skip text

    -F5 video options (filters, screen size, etc.)

Up to you if you choose this over regular version. There's some bugs however.

MINOR BUGS:

    -lingering text box

    -playtime still recorded even with window minimized

    -monster health, ATB bars in animation battle cutscenes (i.e. Father-Son Kamehameha animation)

    -Low chance of black screens (press "Num Key 1" to show screen. Only if no error shows and just black screen w/music still playing)

    -Num key 3 to fix error, when Vegeta talking to people of Earth at Hercule City (If it occurs)

    -'Play movie' only works in windowed mode (Earth Exploding movie black screen in fullscreen)