the 3808 supports flac files natively. I am not sure why they aren't showing up...
Try plugging a usb drive of somesort into the denon with a flac file on it and see fi it plays... if so then the problem must be with the network.
Can you list some albums you think sound bad? thanks.
Ok I put some flac files on a USB and plugged directly into the 3808. They show up there. Must be something going on with my media servers. I have a Synology, an HPMedia Vault and I have a drive on my local computer setup to share folders and they all show up through Denon interface but none of them display flac files. Not sure why but now I know it isn't the Denon.
I'll just stick to SACDs for now because they are the best recordings I have.
Bright Sounding:
Billy Joel The Stranger
Elton John Elton John
Elton John Tumbleweed Connection
Roxy Music Avalon
Dire Straits Brothers In Arms
Sheryl Crow The Globe Sessions