Editing Universal Disk Format (section)

== Tools ==
Various tools have been developed to work with UDF file systems. For Linux, the <code>udftools</code> package contains several tools that can be used directly as a [[command-line interface]], but can also be called by other applications. 

The <code>mkudffs</code> tool creates a new UDF file system on a partition or a [[disk image]] file. The tool is [[symbolic link|symbolically linked]] from <code>mkfs.udf</code> for consistency with other <code>mkfs</code> tools.

<code>udfinfo</code> shows details of an UDF file system such as the volume label, version, counts of files and directories, and the status of the write protection flags. The volume label can be changed using the <code>udflabel</code> tool. 

The write protection flag can "seal" a file system once its [[Optical disc authoring|authoring]] is finished and no more changes to it are intended. For toggling the write protection setting which makes a file system read-only when activated, a tool called <code>udftune</code> was under development, but has not yet been included in the <code>udftools</code> package as of April 2025, following that its maintainer Pali Rohár has reportedly lost access to his GitHub account.<ref name=pali-github />

<code>wrudf</code> allows the user to modify an UDF file system interactively. For example, files can be copied and removed, and directories can be created and removed.

<code>pktsetup</code> implements [[packet writing]] through [[device file]]s named <code>/dev/pktcdvd0</code> and counting up. These device files are separate from the usual device files of optical drives named <code>/dev/sr0</code> (where "sr" means "SCSI ROM") and counting up.

<ref>[https://github.com/pali/udftools GitHub - pali/udftools: Linux tools for UDF filesystems and DVD/CD-R(W) drives]</ref>