Reading DVD on ATV2 with aTV Flash (black)

I have just installed aTV flash on a new ATV2. But i can't ready any DVD?

I used to be able to read files from NitvoTV but it is not the case any more.

What do i have to install to be able to read DVDs?

Also is it possible to read .MKV files? 720? 1080?


many thanks

I give up!! :(

Name of forum you posted your question about atv2:

aTV Flash - 1st Generation AppleTV