Media Type Registrations for

the Open eBook Publication Structure (OEBPS) Package File (OPF)

Status of This Memo

This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

Copyright Notice

Copyright © The IETF Trust (2007).

Abstract

This document serves to register a media type for the Open eBook Publication Structure (OEBPS) Package Files.

1. Introduction

The present document registers a media type for the Open eBook Publication Structure (OEBPS) Package File (OPF). The OPF file is an XML file that describes an OEBPS Publication [OEBPS]. It identifies all other files in the publication and provides descriptive information about them. OPF and its related standards are maintained and defined by the International Digital Publishing Forum (IDPF).

The media type defined here is needed to correctly identify OPF files when they are edited on disk, referenced in OEBPS Container files, or used in other places where media types are used.

2. Security Considerations

The OPF files contain well-formed XML conforming to the XML 1.0 specification.

Clearly, it is possible to author malicious files which, for example, contain malformed data. Most XML parsers protect themselves from such attacks by rigorously enforcing conformance.

All processors that read OPF files should rigorously check the size and validity of data retrieved.

There is no current provision in the OEBPS Package File standard for encryption, signing, or authentication within the file format.

3. IANA Considerations

IANA has registered the media type application/oebps-package+xml as specified in Section 3.1. The registration uses the template present in [RFC4288].

3.1. Media Type for Downloadable Sounds

   Type name:                         application
   
   Subtype name:                      oebps-package+xml
   
   Required parameters:               none
   
   Optional parameters:               none
   
   Encoding considerations:           OPF files are UTF-8 or UTF-16
                                      encoded XML
   
   Security considerations:           none
   
   Interoperability considerations:   none
   
   Published specification:           Specification is published by the
                                      International Digital Publishing
                                      Forum and can be found at
                                      http://www.idpf.org/oebps/
                                      oebps1.2/download/oeb12-xhtml.htm

Applications which use this media type:

                                      1) eBook Technologies, Inc.
                                         eBook reading system.
                                      2) Microsoft Reader
                                      3) OSoft reader
                                      4) Content Reserve Publishing
                                         System
                                      5) IDPF Container WG
                                      6) PC Reader.com
                                      7) MobiPocket reader

Additional information:

      Magic number(s):                none
      
      File extension(s):              .opf
      
      Macintosh file type code(s):    TEXT

Person & email address to contact for further information:

                                      Nick Bogaty (nbogaty@idpf.org)
   
   Intended usage:                    COMMON
   
   Restrictions on usage:             None
   
   Author:                            International Digital Publishing
                                      Forum (www.idpf.org)
   
   Change controller:                 International Digital Publishing
                                      Forum (www.idpf.org)

4. Normative References

   [OEBPS]   "Open eBook Publication Structure 1.2", International
   
             Digital Publishing Forum (IDPF), New York, NY USA, 2002.
   
   [RFC4288] Freed, N. and J. Klensin, "Media Type Specifications and
             Registration Procedures", BCP 13, RFC 4288, December 2005.

Authors' Addresses

Garth Conboy
eBook Technologies, Inc.
7745 Herschel Avenue
La Jolla, CA 92037

   Phone: (858) 551-4950
   EMail: gc@ebooktechnologies.com

John Rivlin
eBook Technologies, Inc.
7745 Herschel Avenue
La Jolla, CA 92037

   Phone: (650) 255-3389
   EMail: john@ebooktechnologies.com

Jon Ferraiolo
IBM
Menlo Park, CA

   Phone: (650) 926-5865
   EMail: jferrai@us.ibm.com

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Acknowledgement

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