I have that on DVD, I loved it so much as a kid.
I've been on a mission to find and collect DVDs of all the movies I really enjoyed as a kid, among them are:
The Secret of NIMH, The Great Mouse Detective, The Rescuers Down Under, An American Tail, My Neighbor Totoro, Little Nemo: Adventures in Slumberland, The Iron Giant, A Troll in Central Park, The Pebble and the Penguin, All Dogs Go to Heaven, We're Back!, FernGully, ect....
So many have mice
Anyway, yeah, great kids movie.