It's really nice to have a forum, now dedicated to EPUB in InDesign. My first discussion we raise here is an explanatory report on Digital Editions.
So here's my first question?
The digital edition can be considered the simplest platform lietura and thus use it to base it on the performance of a simple epub?
The adobe digital edition supports Epub book Flow 2.0 and 3.0?
I haven't done extensive testing, but I don't think Adobe Digital Editions supports EPUB 3 well.
I'd suggest using Readium on Chrome, or iBooks on Mavericks or iPad.
Adobe Digital Editions does not support EPUB 3 completely. There are known issues with groups not showing up properly, video not showing up, issues with image exported with "Use Original Image" option checked and so on.
As Steve suggested, the best solution is to use Readium on Chrome or iBooks.