Hi Eric, yesterday i wrote to manufacturer here is wht they say :
can this item play Films with AC3 or DTS sound and put ito out through the optical cable to my receiver ?
Yes, it can code AC3 and DTS, and it has optical output. What do you mean about receiver? Do you mean a ampliticador? If yes, then ,it is ok.
What does i need to do this and where can i get further software or firmware upate for this box ?
For App software, you can update yourself from the Play Store. For firmware, if you order from us on bulk, we will send you new firmware once we have for upgrade.
Now i asked for their firmware will tell u what they answer.