My Disney DVD's as displayed in the above photo:
Pinocchio: 70th Anniversary Edition
Dumbo: Big Top Edition
Lady and the Tramp: 50th Anniversary Edition*
101 Dalmatians: 2-Disc Platinum Edition
Sleeping Beauty: 50th Anniversary Edition*
The Jungle Book: 40th Anniversary Edition
The Aristocats: Special Edition
Robin Hood: Most Wanted Edition
The Black Cauldron: 25th Anniversary*
The Fox and the Hound: Gold Collection
The Great Mouse Detective
Oliver & Company: Special Edition
The Little Mermaid: Special Edition*
Aladdin: Special Edition
Aladdin and the King of Thieves
The Lion King: Special Edition
Pocahontas: 10th Anniversary Edition*
Hunchback of Notre Dame
Hercules: Gold Collection
Mulan: Special Edition*
Tarzan: Special Edition*
Atlantis: The Lost Empire: 2-Disc Collector's Edition
Lilo & Stitch: 2-Disc Big Wave Edition
The Emperor's New Groove: The New Groove Edition*
Brother Bear: 2-Disc Special Edition
Home on the Range
Chicken Little
Meet the Robinsons
A Bug's Life: Collector's Edition
Finding Nemo: 2-Disc Collector's Edition
Wall-E: 3-Disc Collector's Edition
The Absent-Minded Professor: The Comedy Favorites Series (B&W)
Tinker Bell
The Three Musketeers (Mickey, Donald, Goofy)
Mary Poppins: 40th Anniversary Edition
Enchanted: Widescreen
Bolt: Deluxe DVD Edition
Who Framed Roger Rabbit: Vista Series
Tim Burton's The Nightmare Before Christmas: Special Edition
Frank and Ollie: Special Edition
Waking Sleeping Beauty
Kim Possible The Complete First Season
Kim Possible The Complete Second Season
Kim Possible Movie: So the Drama
Hmm, for some reason my DVD's of Peter Pan* and Ratatouille are still in storage.

I'll have to pull them out later.
I have many that are put away for now, including the anthology films of the 1940's, several direct-to-video films, many shorts collections, some live-action titles, several TV series sets/compilations/made-for-TV-movies, several Miyazaki films, and several double-dips/upgrade remnants. Oh, and a majority of the Disney Treasures sets and all of the Legacy sets; I only have so much shelf space out here.

Maybe after I move again and get reorganized I'll update the other part of the list.
I once purchased but subsequently lost the following discs when I moved to Vegas a few years back, I'd prefer to replace with Blu-rays when/if ever possible but would settle on DVD's for a good price:
Cinderella
The Brave Little Toaster (yes, I'm counting that as Disney)
The Rescuers (didn't actually lose it, just gave my copy away and have yet to replace it)
Treasure Planet
A Goofy Movie
~Luckily I've already replaced/upgraded my lost copes of The Incredibles, Dumbo, and Lilo & Stitch.
Never did pick up The Rescuers Down Under on DVD (only had the VHS years back), but plan to get the Blu-ray when it becomes available.
* * *
Here is my entire collection of Disney Blu-rays thus far, as seen in the above photo on the right (all are combo packs of some sort):
Tangled
The Princess and the Frog
Beauty and the Beast: Diamond Edition*
Alice in Wonderland: 60th Anniversary Edition*
Bambi: Diamond Edition*
Fantasia/Fantasia 2000: 2 Movie Collection*
Snow White and the Seven Dwarfs: Diamond Edition*
Tinker Bell Great Fairy Rescue
Tinker Bell and the Lost Treasure
Up
Cars 2
Cars
The Incredibles
Monsters Inc.*
Toy Story 3
Toy Story 2: Special Edition*
Toy Story: Special Edition*
* * *
Non-Disney Blu-rays, since they happen to be in the photo:
Rio
How to Train Your Dragon
Rango
Megamind
Despicable Me (+ 3 Mini-Movies)
Shrek Forever After: The Final Chapter
* * *
Other DVD's that also just happen to be in the photo:
Back to the Future: The Complete Trilogy
Shrek: 2-Disc Special Edition
Shrek 2: Widescreen
Over the Hedge: Widescreen
Tim Burton's The Corpse Bride: With Collector's Book (Walmart Exclusive)
Coraline: Widescreen
Flushed Away: Full Screen (I prefer wide of course but picked it up really cheap)
Ice Age
Monsters Vs. Aliens
The Iron Giant: Special Edition*
The Secret of NIMH
An American Tail: Family Double Feature (includes Fieval Goes West)
FernGully: the Last Rainforest: 2-Disc Family Fun Edition
Anastasia: Family Fun Edition (Includes Bartok the Magnificent)
I've got a ton more in storage, these just happen to be the ones I keep on display in my living room.
*Indicates having alternate edition(s) in storage.