24 Sep
2013
24 Sep
'13
3:03 p.m.
Hello everyone,
I have created four 24- to 32-minute long DCP packages for a friend and
hobby filmmaker who is going to screen them at a local movie festival.
Now, I've heard back from their technical department that the DCPs I
made using DVD-o-matic are single-reel and that "might cause problems",
whatever that means.
As far as I understand it, there is a convention to limit reels to
somewhere around 22 minutes (e.g. typical old "analog" reel size) to
minimize problems in transfer and handling and to keep the sizes of the
files in the DCPs reasonable. But I wouldn't have thought that a
32-minute single-reel DCP might be problematic. Can anyone enlighten me
on the subject? I'm no projectionist or TMS technician (I'm helping my
friend because I have maginally more hobby experience creating DCPs than
him), so there's a huge question mark hanging above my head. :-)
Furthermore, is there any possibility to create multi-reel DCP packages
via DCP-o-matic, or to convert the single-reel packages into multi-reel
using open-source tools?
Thanks for any help in this matter
Kasi Mir
25 Sep
25 Sep
8:12 a.m.
Some legacy systems (vendor-abandoned, long broken and due for serious upgrades for years)
can indeed have playback issues -- if there are subtitles involved and if a couple of
stars in the immediate vicinity align.
Apart from that long one-reelers are fine on playback systems.
That said and as you mention: There are significant and compelling reasons to _not_ go for
one-reelers in authoring and packaging. E.g. a lab is slow when it can test only after all
200.000 frames are done instead of the first reel of 30.000. Everything you do in
authoring and packaging you want to be able to do in batches.
Wolfgang
On 24.09.2013, at 17:03, Karim 'Kasi Mir' Senoucci <lists(a)tvetc.de> wrote:
Hello everyone,
I have created four 24- to 32-minute long DCP packages for a friend and hobby filmmaker
who is going to screen them at a local movie festival. Now, I've heard back from their
technical department that the DCPs I made using DVD-o-matic are single-reel and that
"might cause problems", whatever that means.
As far as I understand it, there is a convention to limit reels to somewhere around 22
minutes (e.g. typical old "analog" reel size) to minimize problems in transfer
and handling and to keep the sizes of the files in the DCPs reasonable. But I wouldn't
have thought that a 32-minute single-reel DCP might be problematic. Can anyone enlighten
me on the subject? I'm no projectionist or TMS technician (I'm helping my friend
because I have maginally more hobby experience creating DCPs than him), so there's a
huge question mark hanging above my head. :-)
Furthermore, is there any possibility to create multi-reel DCP packages via DCP-o-matic,
or to convert the single-reel packages into multi-reel using open-source tools?
Thanks for any help in this matter
Kasi Mir
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30 Sep
30 Sep
10:21 a.m.
On Tue, 24 Sep 2013, Karim 'Kasi Mir' Senoucci wrote:
Hello everyone,
I have created four 24- to 32-minute long DCP packages for a friend and hobby
filmmaker who is going to screen them at a local movie festival. Now, I've
heard back from their technical department that the DCPs I made using
DVD-o-matic are single-reel and that "might cause problems", whatever that
means.
As far as I understand it, there is a convention to limit reels to somewhere
around 22 minutes (e.g. typical old "analog" reel size) to minimize problems
in transfer and handling and to keep the sizes of the files in the DCPs
reasonable. But I wouldn't have thought that a 32-minute single-reel DCP
might be problematic. Can anyone enlighten me on the subject? I'm no
projectionist or TMS technician (I'm helping my friend because I have
maginally more hobby experience creating DCPs than him), so there's a huge
question mark hanging above my head. :-)
Furthermore, is there any possibility to create multi-reel DCP packages via
DCP-o-matic, or to convert the single-reel packages into multi-reel using
open-source tools?
I'm afraid DCP-o-matic doesn't have that feature, yet ... although I
haven't experienced any problems with long reels on DCPs.
Best regards
Carl
2 Oct
2 Oct
10:28 a.m.
Hello everyone,
Am 30.09.2013 12:21, schrieb Carl Hetherington:
Thanks for clearing
that up, I was afraid I had missed a specific
option/button, as OpenDCP seems to be able to handle those (albeit only
using the command line).
A few days ago, I had the opportunity to speak to the technician which
issued the warning - hi warning didn't reach me directly, but was retold
by a non-technical employee of the festival, who didn't understand the
problem himself.
The technician had no problem with the single-reel DCPs - he just was
under the impression that the four packages contained /*one*/ movie,
rather than four self-contained episodes/short-films. That's why he was
raising concerns, because that would be a rather unusual way to package
a feature-length film, making problems at the transitional points where
a seamless projection can't be guaranteed. The packages themselves were
fine. ;-)
Greetings from Germany
Karim 'Kasi Mir' Senoucci
On Tue, 24 Sep 2013, Karim 'Kasi Mir' Senoucci
wrote:
> Hello everyone,
> I have created four 24- to 32-minute long DCP packages for a friend
> and hobby filmmaker who is going to screen them at a local movie
> festival. Now, I've heard back from their technical department that
> the DCPs I made using DVD-o-matic are single-reel and that "might
> cause problems", whatever that means.
>
[...]
Furthermore,
is there any possibility to create multi-reel DCP
packages via DCP-o-matic, or to convert the single-reel packages into
multi-reel using open-source tools?
I'm afraid DCP-o-matic doesn't have that feature, yet ... although I
haven't experienced any problems with long reels on DCPs. 
11:04 p.m.
On Wed, Oct 2, 2013 at 12:28 PM, Karim 'Kasi Mir' Senoucci
<lists(a)tvetc.de>wrote;wrote:
he just was under the impression that the four
packages contained *one*movie, rather than four self-contained episodes/short-films.
That's why he
was raising concerns, because that would be a rather unusual way to package
a feature-length film, making problems at the transitional points where a
seamless projection can't be guaranteed.
I might have misinterpreted your end goal, but just to clarify - packing a
full feature film in multiple reels won't be unusual :)
That is actually how most feature films are created today. I have seen only
a few single reel Hollywood titles (e.g. the digitally remastered 'Top
Gun').
A standard Hollywood DCP is still created from digital 'reels' at roughly
20min each (+-5min).
The transitional points isn't an issue even though the reel head and tail
are overlapping and are handled by the <EntryPoint> and <Duration> tags in
the CPL.
Check out this thread for info on multiple reels in DCP's:
http://dcinemaforum.com/forum/index.php?topic=182.0
The user at the end of the thread made a script for splitting into reels.
Putting 4 shortfilms into 1 DCP by using the multiple reel feature is of
course possible... but from my perspective, that would only be smart if the
4 episodes/shorts were supposed to be shown back 2 back and never separate.
Sorry if I've misunderstood your meaning! :)
Best regards, Jonathan
3 Oct
3 Oct
7:20 a.m.
Hello everyone,
Am 03.10.2013 01:04, schrieb Jonathan K. F. Jensen:
On Wed, Oct 2, 2013 at 12:28 PM, Karim 'Kasi
Mir' Senoucci
<lists(a)tvetc.de <mailto:lists@tvetc.de>> wrote:
he just was under the impression that the four packages contained
/*one*/ movie, rather than four self-contained
episodes/short-films. That's why he was raising concerns, because
that would be a rather unusual way to package a feature-length
film, making problems at the transitional points where a seamless
projection can't be guaranteed.
I might have misinterpreted your end goal, but just to clarify -
packing a full feature film in multiple reels won't be unusual :)
That is actually how most feature films are created today. I have seen
only a few single reel Hollywood titles (e.g. the digitally remastered
'Top Gun').
I know. That's why *I* misinterpreted the warning from the
(non-technical) festival employee as "your DCPs aren't multi-reel". The
DCPs in question are only half an hour long, though that's slightly
longer than the standard reel length.
What I meant by the above (and what the festival technician was warning
about) was that it would be unusual (and problematic) to package a movie
in several /*DCPs*///(not *reels*!). There the transitional points would
most certainly be problematic.
I hope I clarified what I meant now - as you see, the difference between
packages and reels can cause confusion on many levels. ;-)
Greetings
Kasi Mir
10:39 a.m.
Ah, OK! Gotcha! :-)
Best regards, Jonathan
On 3 Oct 2013 09:20, "Karim 'Kasi Mir' Senoucci" <lists(a)tvetc.de>
wrote:
Hello everyone,
Am 03.10.2013 01:04, schrieb Jonathan K. F. Jensen:
On Wed, Oct 2, 2013 at 12:28 PM, Karim 'Kasi Mir' Senoucci <
lists(a)tvetc.de> wrote:
he just was under the impression that the four
packages contained *one*movie, rather than four self-contained episodes/short-films.
That's why he
was raising concerns, because that would be a rather unusual way to package
a feature-length film, making problems at the transitional points where a
seamless projection can't be guaranteed.
I might have misinterpreted your end goal, but just to clarify - packing
a full feature film in multiple reels won't be unusual :)
That is actually how most feature films are created today. I have seen
only a few single reel Hollywood titles (e.g. the digitally remastered 'Top
Gun').
I know. That's why *I* misinterpreted the warning from the
(non-technical) festival employee as "your DCPs aren't multi-reel". The
DCPs in question are only half an hour long, though that's slightly longer
than the standard reel length.
What I meant by the above (and what the festival technician was warning
about) was that it would be unusual (and problematic) to package a movie in
several *DCPs** *(not *reels*!). There the transitional points would most
certainly be problematic.
I hope I clarified what I meant now - as you see, the difference between
packages and reels can cause confusion on many levels. ;-)
Greetings
Kasi Mir
10 Oct
10 Oct
11:57 p.m.
Ah, I understand!
I completely agree, the terms of reels and packages can cause confusion.
Thanks for clarifying! :)
Best regards,
Jonathan
On 3 Oct 2013 09:20, "Karim 'Kasi Mir' Senoucci" <lists(a)tvetc.de>
wrote:
Hello everyone,
Am 03.10.2013 01:04, schrieb Jonathan K. F. Jensen:
On Wed, Oct 2, 2013 at 12:28 PM, Karim 'Kasi Mir' Senoucci <
lists(a)tvetc.de> wrote:
he just was under the impression that the four
packages contained *one*movie, rather than four self-contained episodes/short-films.
That's why he
was raising concerns, because that would be a rather unusual way to package
a feature-length film, making problems at the transitional points where a
seamless projection can't be guaranteed.
I might have misinterpreted your end goal, but just to clarify - packing
a full feature film in multiple reels won't be unusual :)
That is actually how most feature films are created today. I have seen
only a few single reel Hollywood titles (e.g. the digitally remastered 'Top
Gun').
I know. That's why *I* misinterpreted the warning from the
(non-technical) festival employee as "your DCPs aren't multi-reel". The
DCPs in question are only half an hour long, though that's slightly longer
than the standard reel length.
What I meant by the above (and what the festival technician was warning
about) was that it would be unusual (and problematic) to package a movie in
several *DCPs** *(not *reels*!). There the transitional points would most
certainly be problematic.
I hope I clarified what I meant now - as you see, the difference between
packages and reels can cause confusion on many levels. ;-)
Greetings
Kasi Mir
4218
days inactive
4234
days old
7 comments
4 participants
participants (4)
-
Carl Hetherington -
Jonathan K. F. Jensen -
Karim 'Kasi Mir' Senoucci -
Wolfgang Woehl