This app solves my use case perfectly: I have a large music library stored on a DLNA-enabled NAS drive, and I wanted an app to play that music over Chromecast Audio. C5 is the best app Ive found for that purpose. Why I like it: it automatically found both the DLNA source and the Chromecast device; it downloaded album covers automatically and quickly; it it supports both browsing and searching music; it looks nice.
It cant stream to Chromecast when in the background or when the phone is asleep. Fortunately, though, it prevents the phone from going to sleep while its playing, so you just have to avoid the temptation to use another app.
Although the description says it supports WMA format, it doesnt recognize *lossless* WMA files. But I only have a few of those, and I can probably convert them to MP3.
But those complaints are minor. Overall, this app is great!
bmorearty about C5+ Stream DLNA Cast Player