I load The course of Monkey Island, Monkey Island 2, Maniac Mansion. All "DOS, German" zip files.

I download scummVM on my Galaxy S3 and Download some Games. The games are zipped. Now i open scumm and choose add game. I see the zip file but cant select it and when i click on OK scumm tells me "cant find any game". All games i download are "DOS, german" Versions. What do i wro...