| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 3-86717-169-6 | 3867171696 |
| ISBN-13 | 978-3-86717-169-4 | 9783867171694 |
| Agency | German language | |
| Publisher | Der Hoerverlag DHV | |
| not well-formed | |||||||||
| valid hyphenation | |||||||||
| The check-digit is not correct. If the rest of the ISBN is correct (and it may not be), the check digit should be: 1. | |||||||||
| Correcting check-digit gives: 978-3-86717-087-1 which appears to be valid. The governing agency is: German language. | |||||||||
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 3-86717-660-4 | 3867176604 |
| ISBN-13 | 978-3-86717-660-6 | 9783867176606 |
| Agency | German language | |
| Publisher | Der Hoerverlag DHV | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 3-86717-665-5 | 3867176655 |
| ISBN-13 | 978-3-86717-665-1 | 9783867176651 |
| Agency | German language | |
| Publisher | Der Hoerverlag DHV | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-78110-802-1 | 1781108021 |
| ISBN-13 | 978-1-78110-802-4 | 9781781108024 |
| Agency | English language | |
| Publisher | Pottermore Publishing | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 3-8445-3718-X | 384453718X |
| ISBN-13 | 978-3-8445-3718-5 | 9783844537185 |
| Agency | German language | |
| Publisher | Der Hoerverlag DHV | |
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 3-551-55748-9 | 3551557489 |
| ISBN-13 | 978-3-551-55748-3 | 9783551557483 |
| Agency | German language | |
| Publisher | Carlsen | |
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 3-551-57777-3 | 3551577773 |
| ISBN-13 | 978-3-551-57777-1 | 9783551577771 |
| Agency | German language | |
| Publisher | Carlsen | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 3-551-55700-4 | 3551557004 |
| ISBN-13 | 978-3-551-55700-1 | 9783551557001 |
| Agency | German language | |
| Publisher | Carlsen | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 3-551-35407-3 | 3551354073 |
| ISBN-13 | 978-3-551-35407-5 | 9783551354075 |
| Agency | German language | |
| Publisher | Carlsen | |
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 3-551-31317-2 | 3551313172 |
| ISBN-13 | 978-3-551-31317-1 | 9783551313171 |
| Agency | German language | |
| Publisher | Carlsen | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-78110-597-9 | 1781105979 |
| ISBN-13 | 978-1-78110-597-9 | 9781781105979 |
| Agency | English language | |
| Publisher | Pottermore Publishing | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-78110-244-9 | 1781102449 |
| ISBN-13 | 978-1-78110-244-2 | 9781781102442 |
| Agency | English language | |
| Publisher | Pottermore Publishing | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 3-551-55747-0 | 3551557470 |
| ISBN-13 | 978-3-551-55747-6 | 9783551557476 |
| Agency | German language | |
| Publisher | Carlsen | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 3-551-55740-3 | 3551557403 |
| ISBN-13 | 978-3-551-55740-7 | 9783551557407 |
| Agency | German language | |
| Publisher | Carlsen | |
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 3-551-55928-7 | 3551559287 |
| ISBN-13 | 978-3-551-55928-9 | 9783551559289 |
| Agency | German language | |
| Publisher | Carlsen | |