mini raise from an early or medium position

[Manque]

20+2

I usually find (at my level at least) that a mini raise from a late position is a sign of weakness, but I don't know how to handle it when the raiser is in an early or middle position. Should I also treat it as a sign of weakness or is folding the correct option?

Party Poker No-Limit Hold'em Tourney, Big Blind is t100 (6 handed) converter

CO (t948)
Button (t2252)
SB (t760)
Hero (t1010)
UTG (t1877)
MP (t1153)

Preflop: Hero is BB with 7[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to t200</font>, <font color="#666666">4 folds</font>.

Final Pot: t350