Libisofs is a library to create an ISO-9660 filesystem and supports extensions like RockRidge or Joliet. It is also a full featured ISO-9660 editor, allowing you to modify an ISO image or multisession disc, including file addition or removal, change of file names and attributes etc. It supports the extension AAIP which allows to store ACLs and xattr in ISO-9660 filesystems as well. As it is linked with zlib, it supports zisofs compression, too.