Sorry to necro-bump an old topic, but the links to this tool via marlonob’s multi-source seeder have been returning internal server errors frequently for the past few days. I’ve been waiting for several hours to submit ISRCs for one album, and every time I’ve attempted to do so I get the same error message.
EDIT: I manually removed the ?bind= syntax from the URL the seeder generates, and the link worked then. (I couldn’t submit anything to MB, though.) There has to be an issue with interaction between the two services.