Bob Jensen's Codec Saga: How I Lost a Big Part of My Life's Work
Until My Friend Rick Lillie Solved My Problem
Bob Jensen at Trinity University

The essay below is on the Web at
http://www.cs.trinity.edu/~rjensen/video/VideoCodecProblems.htm

There are many newer 64-bit Windows 7 computers that will not playback videos compressed on computers such as my 32-bit Windows XP computer. Give your 64-bit computer a test. The most popular video I ever produced is my 133ex05a.wmv video that's still being downloaded by thousands of security analysts and auditors. Even before I purchased a new computer I was getting complaints that this video would not play on 64-bit Windows 7 computers.

Give your computer test by trying to playback the 133ex05a.wmv video at
http://www.cs.trinity.edu/~rjensen/video/acct5341/

Playback problems are also arising in videos created by millions of people other than me, especially Camtasia videos produced on 32-bit computers. The trouble is that Microsoft's set of codecs embedded in Windows 7 leaves out some important codecs in earlier versions of Windows.Many high level tech support groups still don't know how to solve this problem. For example, two days ago three Level 2 experts in the Dell Technical Support Division did not have a clue on how to solve the problem. Even though the video above would not run on my various video players such as Windows Media Player, VLC Player, Realtime, and Quicktime, Dell Level 2 technicians suggested I try three other players. None of these players corrected my problem.

Codec --- http://en.wikipedia.org/wiki/Codec
Warning: There are many outfits on the Web that offer free or fee downloads of codecs. Don't trust any of them unless somebody you really trust informs you that these downloads are safe. Many of codec downloads carry malware malicious code that will put such things as Trojan horse viruses into your computer. One outfit even claims to playback virtually all videos without using a codec. I don't trust this company enough to even try its download. Quite a few people have downloaded the K-Lite Codec Pack, but my Sophos Security blocker would not allow this download. Friends who have the K-Lite does tell me that they still can't run many older videos in 64-bit machines that will run in 32-bit computers.

To make a long story short, a technical support expert named Ian at California State University in San Bernardino proposed a solution to the problem at the behest of my good friend and education technology expert Professor Rick Lillie.

On Thanksgiving Day Rick sent the following recommendation:

The problem is specifically an audio codec that did not come with Windows 7. Ian found a trustworthy place which provides that particular codec:
http://www.voiceage.com/acelp_eval_eula.php

Trinity University requires that I honor a relatively tough Cisco Systems security barrier called Sophos if I want to run my files on servers at Trinity. The VoiceAge download mentioned above not only passed through my Sophos barrier, unlike the K-Lite Codec Pack, the download took place in the blink of an eye.

Now old videos play wonderfully on my new 64-bit Windows 7 laptop from Dell. However, this is a limited solution in that users around the world who do not know about this solution or an equivalent solution will either not be able to run many old videos or they will be clogging my email box. I am asking that all of you inform your tech support group about this solution. I informed the Dell Support Group.

A better solution for my hundreds of videos still being served up on the Web would take weeks of my time. Windows 7 OS 64-bit computers will play my huge uncompressed avi files that I store in my barn. It is out of the question to serve up enormous avi files that can be compressed into files that save over 90% of of storage and transmission size. However, I did experiment with recompressing a couple of avi files on my 64-bit machine. These files will playback in wmv, rm, swf, and mov formats using only Windows 7 codecs. But at this stage of my life I don't want to spend weeks of my time solving a problem that Microsoft could solve with little cost or trouble.

Why compress raw avi videos into compressed wmv, mov, mpg, rm, scf, or some other compressed versions?
The reason is largely a file size issue with raw avi videos. If I captured an avi file that is over 200 mb in size it takes up a huge amount of space on a server and takes forever to download over the Internet. By compressing it into something liike a wmv format for Windows Media Player, a mov format for Apple's Quicktime, or a rm format for Real Media, or a swf format for an Adobe Flash player, I can reduce the file size by over 90% without serious loss in video playback quality. I should, however, store the original avi file somewhere if I think I may want to edit and recompress the video in the future.

Hilarious Enron home video (originally reported by the Houston Chronicle)
A hilarious Enron home video (really made by genuine Enron executives like Jeff Skilling at Rich Kinder's resignation party) example is shown at http://www.cs.trinity.edu/~rjensen/video/
The raw Enron1.avi video of 201 mb is poor quality video that a friend at Villanova captured in 2003. It will take you over 20 minutes to download this avi video, but since it is in avi format it will play on my new 64-bit Windows 7 computer. When I compressed the video into an Enron1.wmv format it only takes up 20 mb of space (over a 90% savings) on the server and will download in less than two minutes.

However, until I downloaded the VoiceAge codec this wmv compressed version would not play on my new 64-bit Windows 7 computer. It always did play on my old 32-bit computer. The reason is that Microsoft left out some historic codecs for in the latest version of 64-bit computers.

In fact the problem is so severe with old 32-bit media that in Windows 7 Microsoft made the 32-bit version of Windows Media Player (WMP) the default player even though a 64-bit version is also available such that techies can, if you so choose, make the 64-bit version your default WMP ---
WMP 64-bit switch --- http://www.mydigitallife.info/2009/10/25/how-to-set-64-bit-windows-media-player-12-wmp12-as-default-player/


However, even if you are using the default 32-bit WMP video player in your new 64-bit computer, there are historic Windows XP codecs missing such that many historic compressed videos will not play on your 64-bit computer using Microsoft's default 32-bit Windows Media Player, and that is the reason I am writing this essay today.

 

Camtasia Studio (for Windows and belatedly the Mac OS) --- http://en.wikipedia.org/wiki/Camtasia_Studio
TechSmith's Home Page for Camtasia Studio --- http://www.techsmith.com/camtasia/

I was an early adopter of Camtasia and produced Camtasia videos on Win95, XP 32-bit, and Windows 7 64-bit computers. In the earliest days I recorded hundreds of Camtasia videos with a microphone so I could narrate while solving homework, quiz, and examination problems on my computer screen. Since many of these were textbook problems and cases  that I could not legally solve in videos  for public viewing, I served my Camtasia video solutions up on a LAN server that only my students could study. Textbook publishers would not have been happy if I put video solutions to their homework problems and cases on a public Web server.

An example of a very early homework solution video can be found at in the
PDQ05-15tEST2/PDQ05-.15tEST2.wmv file at
http://www.cs.trinity.edu/~rjensen/temp/PDQ05-15tEST2/
The mouse motion in this video begins after a minute or so. J had to dig up the original avi version recorded years ago and then recompress the avi version into a wmv compressed video on my new 64-bit, Windows 7 computer.

Some historic (e.g., 2001) compressions created on my old 32-bit computer will run on 64-bit Windows 7 computers. See for yourself by trying to run any of the sample videos at
http://www.cs.trinity.edu/~rjensen/video/acct1302/camtasia/
I suspect that I recorded these sample videos at a different audio sampling rate years ago. This does show that there will be problems playing back all 32-bit computer compressions of avi files.

After some playing around I think that the problem is in the audio sampling rates that TechSmith used in compressing some of my historic videos. TechSmith did not always use the same sampling rates when compressing avi files into wmv,mov, rm, scf, and other compressed versions of avi files.

The reason for this compatibility problem is that TechSmith does not write codecs. TechSmith relies on codecs available in whatever among codecs built into the Windows operating system you're using. And Microsoft in an uncaring way did not include some of the Windows XP codecs for 32-bit computers  in its Windows 7 upgrade for 64-bit computers.

Another solution I attempted and that failed to add needed codecs (actually I need Expression since FrontPage is no longer being upgraded)
Microsoft Expression --- http://social.expression.microsoft.com/Forums/en-US/encoder/thread/3eabf903-b49f-4f92-b508-f28a795d6c90
Some known problems with Microsoft Expression---
http://thepiratebay.org/torrent/5863960/MICROSOFT_EXPRESSION_STUDIO_4_ULTIMATE_(activated)_%5Bthethingy%5D

There are many downloads that might work that I would not trust downloading into my computer. If you want to take a chance with your 64-bit computer be my guest --- http://www.x64bitdownload.com/downloads/t-64-bit-dziobas-rar-player-download-wbwseasx.html
Also see http://www.canadiancontent.net/tech/download/Dziobas_Rar_Player.html
Please let me know if you can playback the 133ex05a.wmv file using these or other solutions (if they did not infect your computer with malware)..
My playback test videos are at http://www.cs.trinity.edu/~rjensen/video/acct5341/
Email:  rjensen@trinity.edu


My experience also tells me that there's something to being able to store your life's work in hard copy on library shelves.

One sign of getting too old is when years of a professor's work can no longer be used under current versions of hardware and software. It's a little like having a double tree for horses on a wagon in the era of tractors or an old threshing machine in the era of harvesting combines.


The real definitive sign is when your wife wants you evaluated on the PBS "Antiques Road Show."

My experience also tells me that there's something to being able to store your life's work in hard copy on library shelves.

I sure would like to know if and why some 64-bit Windows 7 computers can run the videos such as the videos at
http://www.cs.trinity.edu/~rjensen/video/acct5341/ 

 

A Bit of History
This reminds me of when Apple used to come out with new versions of the Mac operating system that were not backwards compatible. I recall sharing a cab in Manhattan with the University of Waterloo's Efrim Boritz years ago. Efrim grumbled that Apple had destroyed years of his work by not making the new version of the Mac operating system sufficiently compatible with an updated version.

For years one huge advantage of Microsoft was insistance on making new versions of DOS compatible with older versions which led to millions of lines of code that would've been unnecessary if new versions of DOS were not backwards compatible.

That does not seem to be the case today.

Boo on TechSmith! Boo on Microsoft! Boo on Apple!

They are sometimes uncaringly destroying years of our work with new upgrades.

A sampling of Bob Jensen's videos available on the Web ---
http://www.cs.trinity.edu/~rjensen/video/

Open sharing tutorial videos available from major universities ---
http://www.trinity.edu/rjensen/000aaa/updateee.htm#OKI

A sampling of other videos and audio available on the Web ---
http://www.trinity.edu/rjensen/Music.htm

Bob Jensen's threads ---
http://www.trinity.edu/rjensen/threads.htm




December 1, 2010 reply from Richard Campbell

Bob:
I posted your question on the Techsmith intranet and received this response.

This is a reply from Dave O'Rouke of Techsmith - Camtasia's Lead Developer"

"Your friend is wise not to download codecs from untrusted sources. Soooo many systems have been corrupted by these. I've personally looked at several escalated TechSupport cases where this is the root of the problem. Often the uninstall is worse than the install. So it's definitely good advice to only install codecs from a trusted source, and avoiding codec "packs" unless they come from a vendor you trust.

The 133ex05a.wmv referenced from the saga uses the ACELP.net audio codec, which has been deprecated by Microsoft for many years, and as far as I can tell, does not ship with Windows 7. The WMV also uses the Microsoft Screen codec, which is similarly old, but still supported (barely) on Windows 7. These WMV files were created with a very old version of Camtasia. Newer versions of Camtasia use different codecs that are better supported.

As the platform changes (such as 32-bit to 64-bit) codecs must be updated in order to function on the newer platform. In addition, there have been many new advances in compression methods in the last decade. Codecs that were state of the art in the year 2000 are supplanted by newer, better ones in 2010. Such is the nature of the computer industry.

This seems in conflict with your friend's desire to preserve his work indefinitely. The truth is that there's no one video format that will live forever. He could store his files as uncompressed AVI files, and accept the huge file size. That would avoid a dependency on a particular vendor. Or he could choose a format that has broad industry support today, such as MP4 (H.264 video + AAC audio). There's no guarantee here either, but it's certainly a good bet that this format will live for a while longer."

Richard J. Campbell

mailto:campbell@rio.edu

December 1, 2010 reply from Bob Jensen

Hi Richard,

I also contacted TechSupport at TechSmith and got essentially the same brush off. You have permission to forward my  reply below to all the uncaring officials at TechSmith. TechSmith could at least warn people who purchase that avi files must be preserved if they want to preserve all their Camtasia Work. No such warning appeared in all the versions of Camtasia that I purchased. In fact lawyers might have fun with the brush off reply that your quoted above.

Boo on TechSmith
This company is just saying there's not sufficient value in old scholarship to care about preserving this scholarship!

Thank you so much for the clarification. TechSmith relies on Microsoft to maintain video compression codecs. TechSmith apparently does not write, or at lease preserve, its own video compression codecs.

It appears that I was correct all along. TechSmith just does not care. They could write codecs so that older Camtasia videos, such as wmv files, compressed in older versions of Camtasia could be viewed in the latest version of Camtasia Studio and recompressed, but TechSmith violated our faith that they would do all they can to preserve our life's work.

TechSmith is simply saying take your Camtasia history and shove it unless you want to spend months or years of your life creating the history every time Windows has a major upgrade.

I suggest you save all the work you did for Wiley in avi formats. Someday with some Windows OS upgrade all your months of work will have to be redone unless Wiley chooses to let it die.

I'm courious if your Wiley files will currently run on 64-bit Windows 7 computer. If would be a shame if all your work would only run for students and faculty with 32-bit computers not running on Windows 7,

Boo on TechSmith
This company is just saying there's not sufficnt value in old scholarship to care about preserving this scholarship!

I also contacted TechSupport at TechSmith and got essentially the same brush off. You have permission to forward my above reply to all the uncaring officials at TechSmith. TechSmith could at least warn people who purchase that avi files must be preserved if they want to preserve all their Camtasia Work. No such warning appeared in all the versions of Camtasia that I purchased.

In fact lawyers might have fun with the brush off reply that your quoted above.

Bob Jensen


December 2, 2010 reply from Bob Jensen

Big Brother Publishing House sneaks into libraries in the dead of night and, without warning, selectively purges the history books and videos

It strikes me as ironic that the only preservers of some unpublished research papers may be the journals that rejected the papers

Hi Richard,

You wrote "don't expect your yellowed course notes from the 60's to be useable in the year 2010.". I don't think you intended this to really read as it sounds, but it easily can read "don't expect yellowed pages in your campus library books to be of use to anybody in the future."

As fate might have it the only record I have of much of my research during my two CASBS think tank years on the Stanford Campus in the 1970s is on very yellowed pages of notes stored in my barn or lost entirely by me. An Australian professor, Chris Deeley, last week requested photocopies of some of that unpublished  work on adaptive factor analysis and multidimensional scaling. My work went unpublished because of a fatal flaw that exists in virtually all adaptive multivariate models that sequentially feed in predictor variables. That flaw is that the predictive power of some of the predictor variables varies with the arbitrary orders in which they are fed into the model. I discovered that in three subsequent moves (to Florida, Texas, and New Hampshire) that I'd thrown out most of my research notes just like many authors discard the only drafts of their unfinished books. I did not anticipate that  "my yellowed course notes from the 60's to be useable in the year 2010."

It strikes me as ironic that the only preservers of some unpublished research papers may be the journals that rejected the papers.
Suppose that you want to read the rejected submissions of long-dead Professor X to The Accounting Review in the 1980s. Perhaps the only record of those rejected submissions or those submissions as originally submitted before substantive revision is in some obscure "yellowed-page" file of the American Accounting Association.

I recently had a conversation with our departing TAR editor about a particular submission that was rejected by referees in 2005. In this particular instance the author had later on sent me his rejected submission. The TAR editor was able to recover that well-known author's original TAR submission plus the referee recommendations/conditions for revision that the author apparently declined to revise and resubmit. Someday the AAA might have the only copy of that author's rejected submission on very "yellowed pages."

I don't know how long the AAA keeps editorial files of submitted manuscripts, but history scholars would prefer that such files never be destroyed. Interestingly, authors submit doc files electronically these days. These computer files are the cheapest way of storing and transmitting manuscripts. But what if Big Bother decides to no longer support the reading of older doc files produced before 1990? While cursing Big Brother, history scholars would be very grateful if the AAA also preserved at least one version of every submitted manuscript and referee report in hard copy.

It will never happen for my course and research notes, but long into the future the discovery of the "yellowed course notes from the 60's" of a few accounting professors may be of great value to historical scholars. One of the frequent joys of historical scholars is to discover letters, notes on bits of paper, and other original works great authors, statesmen, Einsteins, etc. that have been uncovered decades or centuries later in time. No such luck for work preserved in some by technology software subject to the whims of Big Brothers that we put too much faith in until we learned how willing they are to purge all libraries of all works produced in their publishing houses.

This is your uncaring Big Brother purger of historical knowledge
Your TechSmith friend, Richard, is obviously a techie or cost accountant and not a historian scholar when he wrote the following to you:

The 133ex05a.wmv referenced from the saga uses the ACELP.net audio codec, which has been deprecated by Microsoft for many years, and as far as I can tell, does not ship with Windows 7. The WMV also uses the Microsoft Screen codec, which is similarly old, but still supported (barely) on Windows 7. These WMV files were created with a very old version of Camtasia. Newer versions of Camtasia use different codecs that are better supported.

Some of us trusted in the Big Brother publishing house that provided no warning that old Camtasia videos published by perhaps thousands of trusting scholars and researchers and stored in perhaps tens of  thousands of "libraries" could be purged by Big Brother from libraries everywhere in the world by some cost-saving arbitrary Big Brothers like Microsoft and TechSmith who destroy library works without the least bit of warning. We all knew that such storage media as magnetic tapes and other recording tapes had limited storage lives so we transferred these files to other physical media such as printouts (for text and pictures) and modern hard drives for video. But we perhaps did not anticipate that Big Brother publishing houses would make computers no longer able to read the video files that we transferred to newer physical media.

Think of how unpopular it would be to give a human Big Brother or a Hitler the power to purge every library in the world of books that were produced before 1900 or every Camtasia video produced before 2002. The Academy would never allow their libraries to purge books simply because the pages are turning yellow. In fact some of the most yellow-paged books in college libraries are placed in special collections and preserved in a variety of ways just to save them for future scholars. You can blame the now-dead scholar for placing too much trust in Microsoft and TechSmith publishing houses, but that does little good now that the unwarned scholar is dead.

And yet nobody in the Academy, other than David Fordham and Bob Jensen on the AECM, protests in the least when some cost accountant/techie in Microsoft or TechSmith makes a decision to purge all libraries of some historical Camtasia works that researchers and other scholars have entrusted to its electronic "publishing houses."  You, Richard, blame the authors for not re-recording their works on newer software, but this is perhaps denying history scholars access to many works of long-dead scholars who are no longer able to keep re-recording their obscure works.

One of the frequent joys of historical scholars is to discover letters, notes on bits of paper, and other original works great authors, statesmen, Einsteins, etc. that have been uncovered decades or centuries later in time. No such luck for work preserved in some of our advanced technology subject to the whims of Big Brothers that we put too much faith in until we learned how willing they are to purge libraries of works produced in their publishing houses.