Audiobook files vary in size depending on their content. Each Harry Potter digital audiobook will be between 200MB and 1GB in size.
If you have purchased audiobooks from the old version of the Shop, you will need to create a pottermore.com account with the same email address as the one used on the old version of the Shop.
Your audiobooks can be found in your profile on pottermore.com Please see our handy visual guide to help to you listen to your audiobook.
If you are still having problems, please Contact Us.