The software plays under Android and thus also the FireTV from any high resolution files, although it is actually mentioned in the description on the ability (Natively supports playback of 24bit audio by converting to 16bit). Only in the further course of the text is then noted that this does not work (Currently only Android supports up to 16bit / 48kHz audio) under Android. Ie on good German: Those who do not read to the end, is duped. I unfortunately. So the software for my purposes is unfortunately totally useless. Whether the issue is resolved by an update in the future, it is hard to estimate. Too bad! Nevertheless 2 stars, because it seems to be working well otherwise.