IMPORTANT: This project was completed by Reinoud Zandijk. You may still contact the people above for details, but please do not submit an application for this project.

The UDF file system is a fairly useful file system: it is fairly widely supported by many operating systems.
NetBSD already has read/write support for it, but lacks a file system check (fsck) operation to correct errors, to make long-term usage of this file system viable.
A bounty has been proposed and matched by TNF for a working fsck program for UDF.