When I got my Box 5 replacement disc from Ark Square, Hajime included a note requesting that we send back the defective CD to Toho Music. I figured it was for accounting purposes, and Ark has been so good to me that I didn't even question it. Packaged it up with a note last Tuesday 3/4 and sent it back airmail, $3. Easy peasy.
Today I get a big DHL package from Toho Music Theater Library, with a thank you note and a brand new two CD set that sells for $30-$40 on Ark Square and Screen Archives!
You never get that kind of service or kindness from any manufacturer of anything I can think of here in the States! Just wow.

