[T10] [sff_ta_twg] [MtFuji] Pioneer closes Mt. Fuji activity
keiji_katata at post.pioneer.co.jp
Thu Jun 13 04:58:53 PDT 2019
Dear Brian and all,
Each version of the Fuji specifications has “Change History”.
Everyone can check what changes were added in the version.
But let me write a little story of the background.
I have Asthma. It is getting worse little bits.
I leave Pioneer at June 14.
I cannot receive any email from you. Because I cannot access to my email account.
This may have some mistakes.
Please forgive me.
Before Mt. Fuji specification, we have five documents.
- ANSI SCSI 2
- ANSI SCSI3 draft (and MMC draft)
- CD-ROM device: SFF-8020 Revision 1.2 February 24, 1994
- PD device: SFF-8070 Revision 1.1 October 14, 1996
- CD-R device: SFF-8080 Rev 1.2 November 12, 1996
Mt. Fuji members tried to keep Compatibility among all Mt. Fuji Versions. Even if Version was updated, the document kept compatibility that has same CDB/meaning and same Sense codes/meaning.
There were three big issues around 1995.
Issue 1. DVD Association announced DVD Video disc format creation activity.
It has 10Mbps bitrate stream, Mpeg 2 video, 5.1ch surround audio and interactive access with menu. Very high performance was required.
-DVD-ROM Book Part 1: PHYSICAL SPECIFICATION Version 1.0 August 1996
Issue 2. SFF-8020 rev. 1.2 was released on February 24, 1994.
So many new venders released new CD-ROM devices to market. OS venders released high performance OS that use Graphical UI and 32 bits code. PC industry had terrible incompatibly issue and terrible poor implementation issue of such CD-ROM devices. Such problematic CD-ROM devices caused troubles on the GUI OS such as Blue color, Sad face icon and Bomb icon. (I am an engineer that made such problematic CD-ROM device too.)
Issue 3. (not a problem) There were following groups that had relationship to create DVD Video specifications; MPEG, OSTA, CPTWG, DVD Association. For CD, there was Orange Forum.
There were three big issues around 1996.
Issue 1. In 1996, ordinary consumer PC CPU clock speed was around 70MHz and no video accelerator. Performance was a big issue.
Issue 2. CD-ROM discs use ISO9660 file system. CD-ROM discs were used to boot GUI OS and to install the OS.
Issue 3. ATAPI CD changer devices had incompatible vender unique implementation.
Feb 1996, the Mt. Fuji kick off meeting was held in Tokyo called by Devon Worrell of Western Digital Corporation.
Attendees discussed the basics of the meeting such as name, role, goal and place.
Western Digital proposed "Mt. Fuji" as a name of the meeting and the group.
Western Digital proposed a goal that is the enabling DVD Video playback on PC.
Toshiba proposed that the meeting will be held in US and Japan alternately.
Microsoft proposed the open discussion and the open meeting without NDA.
Mar 1996, the first Mt. Fuji meeting was held at western digital Irvine, California.
Over 50 people (near 100) from over 30 companies (near 50) were attended. [I do not have an evidence about number in () ].
Members agreed that Mt. Fuji is a specification that refers to ANSI SCSI and ATA/ATAPI standard and defines C/DVD command set interface with these standards.
DVD Association provided necessary information to Mt. Fuji group for discussion.
People discussed performance issue, DVD Video data layout on DVD-ROM disc and content protection of DVD Video data.
DVD CSS was introduced for content protection.
DVD Association chooses UDF 1.02 file system with ISO9660 file system for DVD Video ROM disc. SFF-8090 has compatibility with SFF-8020. PC can access a DVD-ROM disc as a CD-ROM disc.
Many CD drive venders released ATAPI CD changer device that can have multiple CD discs such as 3 or 6 discs. Such CD changer devices used vender unique implementation to select a CD to mount to OS. This caused "disc volume" management problem on GUI OS. Then the Changer model was introduced. (But today we do not have any ATAPI CD Changer. Large enterprise models use SCSI changer device.)
DVD Association provided DVD-RAM and DVD-R information to the Fuji group. Members discussed about “Features” that are realized by disc and device combination. It was premature to incorporate with Fuji Version 1.0. Then those were postponed to the next version.
Mt. Fuji Revision 1.0 was distributed at October 1, 1997
In 1997 #1:
Members discussed about DVD-RAM and DVD-R to incorporate into Fuji document.
Members agreed that Fuji document should have a new version when a new disc type (new Profile) is added. Then the new document has “Version 2”.
There was 1 big problem.
Problem 1. DVD-RAM drive with DVD-RAM disc is a “block device”. OS uses block device driver/filesystem. DVD-RAM drive with CD-ROM disc is a “CDROM (Multimedia) device”. OS uses Multimedia (CDROM) driver/filesystem. Then OS showed two ICONs on the desktop for a DVD-RAM drive. This causes "disc volume" management problem. The desktop menu (and keyboard) has a “Eject Disc” button. But end user cannot understand which disc will be ejected.
Members discussed about “Features” and “Profiles”. The “EVENT” reporting through “GET EVENT/STATUS NOTIFICATION Command” reports the “Morphing” of a device to Host PC. This resolved the “two ICONs” problem.
DVD-R information provided from DVD Forum was premature to incorporate with Fuji Version 2.0. Then this was postponed to the next version.
Mt. Fuji Version 2 was distributed at January 11, 1999.
In 1997 #2:
Members discussed about CD-R and DVD-R to incorporate into Fuji document.
There were 2 big problems.
Problem 1. There was SFF-8080 Rev 1.2 for CD-R. There were so many CD-R devices that had no compatibility during incremental recording on a CD-R disc. For example, a vender provided 2 models that did not have compatibility each other. Then software venders used vender unique “RAW sector” read command to understand how device wrote/made an intermediate (partially written) CD-R disc. It took very long time to identify the intermediate CD-R disc condition. Sometimes it failed then data disappeared. (I was so surprised!)
Orange Forum members, software engineers and Fuji members discussed many times. DVD Forum disclosed detail information of DVD-R incremental recording.
Members confirmed the meaning of “NWA”, “LRA”, “Track” and confirmed the meaning of Recording Modes of CD-R/DVD-R. Then members defined single recording/reading scheme for UDF1.5 on CD-R/DVD-R disc. Appendix J - "UDF Key Structure (Informative) was added.
Problem 2. A new OS caused “time-out error” during CD-R/DVD-R recording. Then the data on the disc disappeared. The OS had 10 seconds time-out timer on an ATAPI access. Then Close track/Write 10 command that need over 10 seconds was terminated by ATA Reset.
Sense code 2/04/07 LOGICAL UNIT NOT READY, OPERATION IN PROGRESS or 2/04/08 LOGICAL UNIT NOT READY, LONG WRITE IN PROGRESS were described in all commands that may exceed 10 seconds in an operation.
DVD Forum found that linking of DVD-R incremental recording did not cause a read error on DVD-ROM device. Small error after the link point was corrected by Error Correction. Then “Buffer Under-run Free recording” was added.
Mt. Fuji Version 3 was distributed at February 10, 1999.
There were 2 issues.
Issues 1. Digital Terrestrial Television Broadcasting was started from 1998. Digital broadcasting required additional measures on analog broadcasting.
Then CPRM was proposed. But it was postponed.
Issues 2. Video recording/Playback needs real-time access capability. The real-time access may ignore small error (data error, seek error) during recording/Playback.
Then Read 12/Write 12 command with Streaming bit were added.
DVD-RAM 4.7GB and DVD-RW were added.
Mt. Fuji Version 4 was distributed at February 15, 2000.
There were 2 big problems with a new OS that was sophisticated and updated from the previous version.
Problem 1. Because of Partial CAV/CLV disc rotation control of device, time duration of a data writing has variation. Writing software with OS buffer manager had buffer overflow problem and then time-out problem. Members discussed about “time-out error” issue. Buffer capacity report method was added.
Problem 2. There was conflict between Data Writing driver software and OS device Crawler software. Then Device Morphing report method was updated.
CPPM and CPRM were added. (CPPM was a new version of CSS.)
CD-R chipset supported “Buffer Under-run Free recording”. This Feature was added to CD-R Recording.
DVD-R for General Ver.2.0, DVD-RAM Ver.2.1 and High Speed CD-RW were added.
Mt. Fuji Version 5 was distributed at February 18, 2004.
HD DVD disc and Blu-ray disc were announced as the next generation of DVD disc.
HD DVD group selected Mt. Fuji group for the discussion. Blu-ray group selected ANSI T10 MMC for the discussion.
Then MMC and Mt. Fuji cooperated to create command set documents. Almost of all members attended to both meetings. The synchronization between MMC and Fuji was made.
AACS was proposed for HD video content protection.
HD DVD-ROM, HD DVD-RAM and DVD-R dual layer were added.
Mt. Fuji Version 6 was distributed at February 8, 2006.
Still HD DVD and Blu-ray were separated. MMC and Mt. Fuji cooperated to create synchronized command set documents.
HD DVD-RW, HD DVD-R DL, DVD-RW DL and DVD-Download were added.
For DVD-Download, CSS Managed recording model was added.
There was 1 big issue.
Issue. People used Note-PC instead of Desktop-PC. Power management was very important item for the light weight Note-PC. Zero Power ODD was proposed. Members discussed very well.
Then SATA ODD Zero Power was added.
Mt. Fuji 7 Rev.1.2 was distributed at March 19, 2010.
Blu-ray group joined to Mt. Fuji group. Mt. Fuji group members attended to ANSI T10 MMC meeting every time for cooperation.
BD-ROM, BD-R and BD-RE were added. New writing method POW (Pseudo-Overwrite) on BD-R was added.
Mt. Fuji 8 Rev.1 was distributed at October 26, 2011.
Ultra HD BD was announced for 4K/8K video distribution.
SFFC was transferred to SNIA SFF TA TWG.
BD-ROM V2.0 were added.
AACS2 for Ultra HD BD-ROM was added.
Mt. Fuji 9 Rev.1 was distributed at October 13, 2015
BD-RE V3.1 and BD-R V2.2 were added.
AACS2 for Ultra HD BD-RE/R was added.
Mt. Fuji 9 Rev.2 was distributed at January 16, 2018.
Here is the end of my writing.
From: Brian Berg <brianberg at gmail.com>
Sent: Wednesday, April 17, 2019 1:45 AM
To: mtfuji5 at avc-pioneer.com
Cc: t10 at t10.org; sff_ta_twg at snia.org
Subject: Re: [sff_ta_twg] [MtFuji] Pioneer closes Mt. Fuji activity
Thanks to everyone who has worked on these projects over so many years. Is there a good timeline summary of all the work encompassed by these efforts?
Brian A. Berg / bberg at StanfordAlumni.org<mailto:bberg at StanfordAlumni.org>
Berg Software Design
14500 Big Basin Way, Suite F, Saratoga, CA 95070 USA
Voice: 408.741.5010 / Cell: 408.568.2505
Consulting: Flash Memory/USB/Storage/Patents
visit the Storage Cornucopia: www.bswd.com<http://www.bswd.com>
FMS Technical Chair: www.FlashMemorySummit.com<http://www.FlashMemorySummit.com>
IEEE Milestone<http://www.ieeeghn.org/wiki/index.php/Milestones:List_of_IEEE_Milestones> Coordinator and History Chair for Region 6<http://www.ieee-region6.org/>
IEEE SCV Section<http://www.ieee.org/scv/> Past Chair / IEEE-CNSV<http://www.CaliforniaConsultants.org> Board Director
IEEE Silicon Valley Tech History Committee<http://www.SiliconValleyHistory.com/> Chair
On Mon, Apr 15, 2019 at 10:39 PM Keiji Katata <keiji_katata at post.pioneer.co.jp<mailto:keiji_katata at post.pioneer.co.jp>> wrote:
I would like to announce that Pioneer closes its Mt. Fuji activity.
Pioneer hosts Mt. Fuji reflector server.
Then Pioneer will close the reflector soon.
Personally speaking, I has moved from Home Audio Visual department to another last year.
So I also closes my Mt. Fuji activity too.
I posted Adobe FrameMaker source files of Mt. Fuji specification to ftp as follows;
The Mt. Fuji activity began at Feb. 1996 in Tokyo hosted by Western Digital Corporation.
The specification includes CD/DVD/BD optical disc behavior models and ODD device command set.
So many number of people contributed for the specification creation.
I give deep appreciation to all people.
Pioneer keeps the Mt. Fuji ftp server for the present.
So please download your necessary files from the ftp.
Thank you all and regards,
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the T10