All approved UDF 2.60 DCNs

All approved UDF 2.60 DCNs
Document: OSTA Universal Disk Format
Subject: Common aspects of recording for different media
Date: October 19, 2004; modified December 21, 2004
DCN-5117
Description:
This DCN is meant for the next UDF revision after 2.50.
In the UDF 2.50 specification, there are separate sections that define VAT and
Multisession usage, one for CD-R/RW and one for DVD+R. In order to avoid more of
these sections (like for BD-R), the common recommendations for VAT and Multisession
usage will be concentrated in a new section with “Common aspects of recording for
different media”. The medium specific aspects of VAT and Multisession usage will
remain in the sections where they currently are or they will explicitly be mentioned as
exceptions in the new common section.
The section for DVD-R (6.12.3) will not be touched, because it assumes UDF 2.00 usage
and it is for consumer appliances only.
The new section will be integrated with the current section about Real-Time files. Real-
Time files is also a common aspect of recording for different media.
On December 21, 2004, the following addition was made at the end of this DCN as an
editorial change:
It appears that in the DVD+R recommendations, there is no information about the logical
sector size and ECC packet length, while there is for DVD+RW, so this information is
moved to the common section 13 that is valid for both for DVD+RW and DVD+R.
Change:
In 1.3.2 Definitions, at the bottom of page 5
replace:
Session
by:
Session
The tracks of a volume shall be organized into one or more sessions as
specified by the Orange Book part-II. A session shall be a sequence of one
or more tracks, the track numbers of which form a contiguous ascending
sequence.
The tracks of a volume shall be organized into one or more sessions, e.g.
for CD see the Orange Book part-II. A session shall be a sequence of one
or more tracks, the track numbers of which form a contiguous ascending
sequence.
All approved UDF 2.60 DCNs 50 February 28, 2005