German-English dictionary for Vivlio Touch HD plus

Hello,

I have a Vivlio Touch HD plus (Pocketbook 632 commercialised in France under that name), and I am in dire need of a German-English or German-French dictionary on it : ideally a .dic or .pbi format. Major plus if it can translate conjugated verbs (for example tell me that "gemacht" originates from "machen", which means "do") but maybe I'm asking for too much...

I find the dictionary originally set up on my Vivlio (ABBY whatever) absolutely dreadful. It doesn't translate half of the words I struggle with.
Would anyone here know where to find a really good German-English or German-French dictionary ? I'd naturally prefer free but I'd be willing to pay for a really good quality dictionary.

Thanks in advance for your help !

Sarah