UPDATED JULY 1, 2018:
If my count of hard-copy albums is correct, I have:
22 Celtic Woman albumsCeltic Woman
A Christmas Celebration
A New Journey
A Celtic Family Christmas
The Greatest Journey
Songs from the Heart
Lullaby
Believe (Japan)
An Irish Journey
A Celtic Christmas
Believe
Home For Christmas
Silent Night
Irish Songs
Emerald - Musical Gems
O Christmas Tree
Decade
Solo
Destiny
Voices of Angels
The Best of Christmas
Homecoming - Live from Ireland
47 "solo" albums (includes collaboration albums like CaraNua and The Bloody Irish):
Alex Sharpe Be Still My Soul
Amy Rivard Shout It Out
Amy Rivard Where I Am
Anthony Byrne Celtic Piper
CaraNua Jason Tonioli: Favorite Hymns
Chloe Chloe
Chloe Walking in the Air
Chloe Heartstrings
Chloe Home For Christmas
Chloe The Thing About You
Deirdre Shannon Deirdre Shannon
Deirdre Shannon Anamceol
Ewan Cowley The Elevated Life
Glenn & Ronan Hello World (EP)
Glenn & Ronan Horizon
Hayley Westenra Pure
Hayley Westenra Odyssey
Hayley Westenra Celtic Treasure
Hayley Westenra River of Dreams
Hayley Westenra Hayley Sings Japanese Songs
Hayley Westenra Winter Magic
Hayley Westenra Paradiso
Hayley Westenra Hushabye
Karl Nesbitt Vistapoint
Lisa Kelly Lisa
Lisa Lambe Hiding Away
Lisa Lambe The Bloody Irish
Lynn Hilary Take Me With You
Lynn Hilary Saturn Return
Mairead Carlin Songbook
Mairead Nesbitt Raining Up
Mairead Nesbitt Hibernia
Mairead Nesbitt Devil's Bit Sessions
Meav Meav
Meav Silver Sea
Meav A Celtic Journey
Meav Celtic Dreams
Meav The Calling
Orla The Water Is Wide
Orla Distant Shore
Orla Órla Fallon's Celtic Christmas
Orla Winter, Fire & Snow: A Celtic Christmas Collection
Orla My Land
Orla Lullaby Time
Orla Sweet By and By
Róisín Dempsey Spirit of an Irish Christmas
Róisín Dempsey Surrounded
I have a bunch of solo albums / singles in digital format as well (and some other hard copies compilation albums that included Celtic Woman performers that I haven't added to the count yet). Some albums I haven't find hard copies of (ie. Edel's "Bluebonnet Spring", Babylon Sisters EP), or at least not at a reasonable price after shipping (ie. some of Hayley's albums), so I just got digital versions of those instead. There's a bunch of Hayley's compilation / regional albums I don't have. Too hard to get and just too many of them.
That's a total of
69 hard copies so far.
That doesn't include the duplicates I have of some of Chloë's CDs or Homecoming: Live from Ireland
I have 24 Celtic-Woman-related DVD hard copies:
Celtic Woman: The Show
A New Journey: Live At Slane Castle, Ireland
A Christmas Celebration: Live From Dublin
The Greatest Journey: Essential Collection
Songs From The Heart: Live From Powerscourt House And Gardens
Believe
Home for Christmas: Live from Dublin
Emerald: Musical Gems
Destiny
Homecoming - Live from Ireland
Lord of the Dance (Mairead Nesbitt)
Feet of Flames (Mairead Nesbitt)
Celtic Tenors: Live in Concert (Mairead Nesbitt, Deirdre)
Hayley Westenra: Live (Hayley Westenra)
Chloë: Walking In the Air (Chloë Agnew)
Daniel O'Donnell - the Rock 'n' Roll Show (Susan McFadden)
Music of Ireland 1: Welcome Home (Mairead Nesbitt, Orla)
Music of Ireland 2: Welcome to America (Celtic Woman)
Orla Fallon's Celtic Christmas (Orla Fallon, Méav Guest, Eabha cameo)
My Land (Orla Fallon)
Divinas: Live at Chambord Castle (The Divinas, inc. Méav)
The Bloody Irish (Lisa Lambe)
Celtic Roots: Live with Nathan Carter (Chloë Agnew)
Tracks and Paths (Mairead Nesbitt)
I have the Rocktopia DVD too, because the singers, arrangements, and energy are ridiculously awesome. It doesn't have Mairead in it although I wouldn't have the DVD if not for her.
I may not be the absolute pinnacle of CWazy, but they don't call me CWazy for nothing.