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( Website: Beta Version 1.0 )
An apology: "The truth"
need not be spelled right nor punctuated correctly to be any more "the truth".
This is a major re-write
of my website. It contains typographical errors and
omissions. Your help in pointing out typos, or things that don't
make sense, or features that don't work the way we want them to is
deeply appreciated. Any comments -- pro or con -- are welcomed;
but please be gentle. Thank you.
Dirty Little
Secret #1:
The Shelf-life
of a DVD-R/+R is ONLY 2 to 5 years.
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By: Bruce Mayfield |
The old Chinese
proverb, "Be careful of what you ask for" is profoundly prudent advice
when making the statement: "I want my movie film on DVDs".
ALL film transfer studios -- not just
the "transfer mills" -- use DVD-R or DVD+R technology. We use DVD-R,
which is most compatible with most DVD players.
Most transfer mills DO NOT want
you to know that DVDs have an unexpectedly short shelf life of 2 to 5
years. Their whole production process focuses on the use of silver & dye based DVD-R technology -- and nothing else -- to
archive your
films. When I say "archive" I mean, "To store ALL of the original
image, of each and every original image -- for a long, long, time."
| Click to show or hide details: |
| Reference:
Computer World: January 2006: Primarily deals with CD-R technology, but
includes DVDs in its warning to both data and image archivist in 1st
paragraph: Computerworld article. |
The very integrity of CD-R and
DVD-R technology -- which are chemically very similar --is now being
challenged by media experts worldwide. Some experts --
like Kurt Gerecke, a physicist and storage expert
at IBM Deutschland GmbH -- are now reporting that the life of
some optical media (CD-R and DVD-R) to be only 2 to 5 years.
These statements are clearly
backed by longevity tests on "dye based" platter technology -- CD-R,
DVD-R and DVD+R -- conducted by the National Institute of
Standards and Technology. Results showed that failure rates for dye based DVDs
with silver backing (originally thought to have a long life) were far worse
than anyone had realized.
Reference: Results of
CD-R and DVD-R longevity tests. Journal of Research of the National
Institute of Standards and Technology -- Volume 109, Number 5,
September-October 2004
See an HTML
conversion of the study paper.
(A link to the original is at
the end) |
The fall-out from this study is
that Computer Industry and the Federal Government -- are ditching DVD-R,
DVD+R, and CD-R for "archiving"
any type of digital data or digital imagery.
Do not confuse
"backups" with "archives". A client of ours who is a government
employee provided us with the links above; He says that some
government agencies -- including the Library of Congress -- are now
giving caution to their employees on the use of silver backed dye based optical
technology for "archives".
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MiniDV tapes, a
good archive media for the "mainstream". |
An "archive" is a long term concept versus the
short-term idea of "backups".
In the ComputerWorld warning on the use of CD-R, DVD-R and DVD+R for
"backups", corporate wisdom is to "back up" your "backups" every 2
years. As for "archiving", the word of wisdom is: use nothing but
metal particle magnetic digital tape.
Do you still want you
films "archived" -- to DVDs?
What do we do?
We capture your film, in a
"virgin capture", to MiniDV digital tape, a metal
particle digital tape.
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Dirty Little Secret #2:
"Digital Copies"
are not the "Digital Equivalent" to Your Original Film
Transfer Mills sell you a "digital copy"
of your film on DVD. They do NOT sell you the "digital
equivalent" of your film on DVD. Technically, that is
impossible.
Transfer Mills do NOT want you to
know, you need a "digital master tape" --
made directly from your original
film. They want to sell you a DVD "copy" of your film. After
having read Dirty Little Secret #1, you now know why your film should
NOT be "archived" to a DVD only - because a DVD is not an
archive.
| Click to show or hide details: |
Right now, your
original film is your master. In fact, there is no copy,
of any kind, your original film. What is worse, you have almost
"used it up". Your original film is "going bye bye"
- otherwise, you
would not be reading my website.
You need the digital equivalent of your film - in every way - to
preserve what is left of your film, that is to say, preserve the
earliest record "moving images" of your family roots - which will forever be
priceless to your progeny - unless you screw up now.
FACT: Your film is "high resolution"
- your "digital master" should be as well.
FACT: Your film is made up of "full frame pictures"
- thousands of
complete pictures - so should your "digital master".
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Dirty Little Secret #3:
DVDs are not "high resolution".
If I told you I was "throwing away half of your
movie film to transfer to DVD", would you do it?
Well, that is exactly what "transfer mills" are doing. Each one of
the "little pictures" in your film is made up of hundreds of "little
lines". If I throw out every other "little line" to fit your film
to a
DVD, I have thrown away half of your film, haven't I?
That's what MPEG2 compression does.
Still want me to transfer your film to DVD?
| Click to show or hide details: |
Worse yet, just to give you the proper perspective
on DVDs made by the transfer mills, the DVDs (single layer DVDs) made on
a computer are about half the resolution of DVDs (double layered DVDs)
that come from the "video store", because they have a smaller
capacity.
Does that mean that a DVD, made by most transfer
mills, might rival only the home-made quality of a VHS video tape?
Does that mean you can forget about ever seeing the quality of your
original film?
Yep!
Pseudo-technocrat Note: Did you ever wonder why
it takes 2 DVD-Rs, made on a computer, to copy (steal) 1 DVD VIDEO from
the video store? (Not that YOU have ever tried to steal a DVD - but that
you have just wondered about such technological things that your golf
buddy mentioned to you?)
Details about MPEG2 compression and DVDs can be found in the
tutorial.
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Dirty Little Secret #4:
DVDs are NOT made up of
"full frame pictures" -- like your film.
In a nut shell, DVDs are made up of thousands of
JPEG pictures, aren't they? "Well, not exactly". The Dirty
Little Secret is that MPEG2, the video format for video DVDs, only "starts out"
with one JPEG picture (of your grandmother). That's where all
similarity ends.
MPEG2 compression is aggressive. To keep the video stream small, it
starts throwing away parts of the image it thinks it can "rebuild" from
preceding frames. MPEG2 was made to fit tremendous
amounts of data into a small space, knowing it would be "played back" on
older, fairly low quality televisions which would hide a "multitude of
evils" by being too low resolution to really spot the artifacts of the
compression.
Much has changed since.
| Click to show or hide details: |
So, the first frame of your film - of your grandmother - is whole but
compressed like a web JPEG image. Good quality if properly done.
Now, let's talk about the second, third, etc.,
frames (of your grandmother). All subsequent frames (of your
grandmother) are only "partial frames" (of your grandmother's eye
blinking and teeth and gums smiling).
This Dirty Little Secret becomes more shady, because what they, the
transfer mills, don't tell you is ALL duplicate frames (of your
grandmother) are effectively thrown away.
Not much left of your "original film resolution"?
Not much left of your "original film frames"?
Not much left of your "original film" period!
Why do you think they call MPEG2 compression "lossy"?
Still want your film archived to DVD?
Details about MPEG2 compression and DVDs can be found in the
tutorial.
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Dirty Little Secret #5:
DVDs can NOT be copied to other "digital
formats' without "digital artifacts".
Transfer mills let you think that because DVD is "digital" it can be
transferred to other digital formats without loss. BIG WHOPPING WHOPPER LIE.
MPEG2 compression means you've already lost much of your original
film - making the transition to another media can make that loss
worse!
| Click to show or hide details: |
In the previous Dirty Little Secret, you learned
that DVD MPEG2 format throws out "every other 'little line'" of EVERY
picture of your original film (of your grandmother); and DVD MPEG2
format throws out EVERY duplicate frame (of your grandmother); and DVD
MPEG2 throws out every thing but the essentials of all partial frames
(of your grandmother).
Transfer mills would like you to believe that a
video CODEC (Coder/Decoder) will magically re-create
everything -- that was thrown away -- into something that rivals your original
film? Dream on!
If you try to convert (not just copy) your DVD to a HD DVD (the new high
density DVDs of the near future), what will actually happen is the video
CODEC will manufacture 'filler" for EVERYTHING that is 'missing". This
"filler" is called a digital artifact.
If you ever sat too close to the screen at the
movie theater, then you "get the picture" -- that is to say, you do NOT
get the picture.
If you have ever tried to enlarge a newspaper
picture on a copy machine, then you "get the picture" -- or NOT!
If you have ever tried to digitally enlarge a still photograph
-- beyond
the size of its actual pixels -- then you "get the picture" -- little
square digital blocks, all over every thing.
If you have ever tired to "zoom in" into a picture on your computer "too
much", then you "get the picture" - the same kind of picture you will get from trying to "enlarge", "zoom", or
otherwise "convert" a DVD MPEG2 into a "high resolution" digital video format.
Still want your 8mm and Super 8 film transferred
directly to DVDs?
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Dirty Little Secret #6:
"You can edit MPEG2" (DVDs)
- but, "not exactly".
There are many software packages out there that let you edit MPEG2
compressed video. Each will warn you about the consequences of "cutting"
the video stream anywhere but on a key frame. When it comes to getting
the highest possible quality out of your editing efforts, you can edit
MPEG... but why would you want to?
| Click to show or hide details: |
You can "edit" using the MPEG2 format. There are a few little problems
however...
- The video and audio sometimes do not
synchronize so the final picture (of Grandmother) is not in "lip
synch" with what she was saying, because of timing issues with
re-compression.
But, "You can edit MPEG2".
- The video colors (of Grandmother's skin and dress) tend to smear due to
"transcoder" technology - changing from one MPEG2 stream to the new
MPEG2 stream - replacing missing key frames and adding new delta
frames as "best guesses" on the part of the encoder.
But, "You can
edit MPEG2". - The video image itself (of Grandmother) tends to have digital blocks
from re-compression or transcoding.
But, "You can edit MPEG2".
- The original MPEG2 images (of Grandmother) are
not the same as the edited version (of Grandmother) becasue of the
nature of the MPEG2 compression.
But "You can edit
MPEG2".
In summary, edited MPEG2 files (DVDs) have introduced both old analogue
'generation loss" and a new kind of digital "generation loss" into video
(of your grandmother);
BUT, "You can edit MPEG2".
What is more, all the old generation loss and new generation loss will be
introduce to ALL future generations of both your video (of Grandmother)
and all generations of your family - to remember you by;
BUT, "You can edit MPEG2";
and get "digital artifacts" and "audio to video" disjunction...
and you can't convert your newly edited MPEG2
files to higher resolution video formats without major digital artifacts
reinforced and new ones added to your previous low-resolution digital
artifacts.
But, "You can edit MPEG2".
No one will want to watch it a second time.
But, "You can edit MPEG2".
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Dirty Little Secret #7:
You need a "full
frame", "high resolution" digital master -- and a backup.
Let me say it another way: You need a "full frame", "high resolution"
digital master that:
- Rivals your Original Film (of Grandmother) with "near equivalent"
Digital Images (of Grandmother); and,
- Allows you to migrate Original Film Images (of Grandmother) to 'high
resolution" video formats now and in the future; and,
- Allows you to edit and narrate your original film images (of
Grandmother) - to preserve her memory and yours.
| Click to show or hide details: |
Your film is high resolution now. There's no reason to step back from
that and accept a lower resolution digital "copy". The purpose of a
digital transfer is to preserve those images and to expand your ability
to view and make use of them. Any transfer worth your money will:
- Deliver resolution enough to see your film as it is now, grain and
emulsion artifacts clearly visible.
- Be transportable, both from media to media as well as physically
on its original media
- Be flexible enough to be easily used, edited and re-stored on new
media with no "generational loss".
- Prevent catastrophic loss of your family memories by being easily
duplicated and stored as an archive away from your viewing copies.
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Dirty Little Secret #8:
Most Telecine Methods
are VHS quality; NOT High Resolution
The telecine transfer method used to perform your
small gage - 8mm, Super 8, and 16mm - film transfer may sound great at
first blush.
However, beware of yet another "dirty little
secret". Most telecine methods were developed before the digital age and
target problems inherent to older "analogue (composite) video". Much
advertising today promotes technology of the past. The dirty
little secret is, if you use old technology for a film to video
transfer, you will in fact get "the same old quality" of
old technology.
If you use their older technology, then you get
inferior quality for the same price you might otherwise pay for a
superior quality. I know, I am in the business. I have literally put
very expensive, old equipment in the dumpster - knowing it had great
"sales hype" but no "high resolution merit".
| Click to show or hide details: |
For example, a small gauge, home movie transfer
using a "telecine projector" - a movie projector with a built-in camera
- uses old analogue, composite video signals. We, the public and the
video industry, now regard "composite video" as a "low grade". There
never was a small format film "telecine projector" made that had
anything but "composite video out" (VHS quality). Yet the internet is
filled with "transfer mills", that "hype or hide" their use of these old
telecine projectors.
What transfer mills "hide" is the dirty little secret that any resulting
film to tape transfer from an old, small gauge telecine projector would
be the near-equivalent quality of an old VHS tape. Yet that's what they
use to make their single Layer DVDs. It does not matter that they dup
that same video signal onto a high resolution MiniDV tape after the
fact -- or during the fact (as a synchronous product). Their video quality is still only VHS quality - which is to say,
only single Layer DVD-R quality; Ok, not exactly, but close enough.
"Garbage in; garbage out." Adding insult to injury, if a transfer mill "dup" (duplicate)
a VHS or DVD quality video to
a MiniDV, then they "dupe" you as well - making you think, in error,
that you have a "digital master". They call it, "a MiniDV
copy" and usually offer it as an "add-on".
When you want to transfer 8mm film to DVD, the dirty little secrets
you don't know, really will hurt you -- and all generations of your
family, and your film.
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Dirty Little Secret #9:
Telecine Projector - VS - Telecine Transfer
The term "telecine transfer" (not to be confused
with "telecine projector") is a good, legitimate film to video transfer
term, which simply means, the frame rate of your 8mm film, super 8 film,
or 16mm film is synchronized with NTSC video frame rates of your TV set
-- without a
flicker.
| Click to show or hide details: |
Transfer mills want you to think that you can NOT get a "telecine
transfer" without using a "telecine projector". The truth is, there are
many ways to get a "telecine transfer" without using a "telecine
projector". We ditched "telecine projectors" years ago.
Confused? You should be. You have not read my tutorial yet. Read on!
Concerned? You really should be. If you make a decision right now,
without reading my tutorial, then your odds of making the wrong decision
are very good. At this moment, you would be taking a "wild shot in the
dark" - with a lot of money - say nothing of risking the future
longevity and integrity of your home movies.
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In summary:
The concept of transferring "film to DVD" should include a fundamental
step of creating a "virgin", high resolution digital master first.
Then
- and only
then - should "copies" be made onto lower resolution media like DVD-R or
VHS or S-VHS or HI8, etc. - for viewing purposes.
Writable DVDs -- DVD-R/+R -- which all of us
use -- do not last more that 2 to 5 years before they
start to deteriorate.
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Example of our video and music. |
Example Video of my own home movies.
This is a 4.5 megabyte file in QuickTime format.
It's not a perfect example, mostly because it's been compressed very heavily so it can be downloaded easily.
Click here to view the video.
Click on the QuickTime
button
to download a free copy of QuickTime. It is an nice tool to add your computer for viewing video. |
Please note the idea of creating a "virgin digital master" does NOT hold
true of other websites which in talk about MiniDV tapes. The true dirty
little secret is that most transfer mills
- Eliminate the virgin digital master altogether or
- Offer a MiniDV tape as an "Option or Add-on" which is actually a pseudo-master.
- Copying an inferior format, like MPG2 or VHS, onto a MiniDV or
- Made by synchronously producing "a MiniDV master" as a by-product of
a DVD-R in MPEG2.
To arm yourself with pertinent knowledge, please
read through the tutorial.
You can also contact us
for a price quote or to ask questions.
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