This is not one of the original print runs, this is a licensed (from Hasbro, via Wizards of the Coast) perfect bound reprint (by OneBookShelf) in decent shape, cover bend, some shelfwear. 

This was created by scanning an original printed edition. This softcover book is in scanned image format because original digital layout files never existed or were no longer available from the publisher.

This has high-resolution scans of an original copy of the book and is authorized by the publisher. It is essentially digitally re-mastered.