I use Windows Media Player to Rip music from CD to my Windows PC as a .flac lossless file. I upload each album to My Cloud Home NAS drive. I use the Sonos app to view and play music that is saved on the NAS drive. For single artist albums it works fine. But for compilation albums like "Now! This is Christmas" which has 3 CDs and 70 tracks by different artists the tracks show as individual albums - 70 individual albums! The album is complete on PC and complete on My Cloud, it only gets separated in Sonos. Any solutions gratefully received.