Wow! just came across this project. I was cleaning out my video cassettes and found that Disney has not released DVD for The New Adventures of Winnie the Pooh by 11/08/2017. Keep up the good work! The whole afternoon series had really good shows.
I found on:
https://en.wikipedia.org/wiki/The_New_Adventures_of_Winnie_the_Pooh
a full wiki and where most of the episodes were released later. I remember you were having trouble with sound and these re-releases on DVD in English can help with that and the higher dvd quality than VHS.