Lowest compression QT.dv or QT.mov?

This has probably been asked a million times but -
Which loses most QT.dv or QT.mov?
ie. what are the comparative compression rates?
And, which is best to export to iMovie HD6 dv for best results?

If DV uses a specific compression - what is it?
1) DV and DVCPRO25 usually have a video data compression rate on the order of 25.0-29.0 Mbps while DVCPRO50 is usually on the order of 55.0-59.0 Mbps and HDV (sometimes referred to as DV/DVCPRO100 by some) can have an "actual" video data rate between 80 and 120 Mbps.
2) The DV export option creates a file with both DV video and DV audio content. Thus, the DV, DVCPRO, and DVCPRO50 data rate stated above must be doubled to give the "total" data rate for a DV stream file which determines the "total" file size. On the other hand, the MOV file container contains a DV video track and an audio track of your choice (e.g., Uncompressed/Linear PCM, IMA 4:1, MPEG-4 AAC, AMR Narrow, MPEG Layer 2, MPEG Layer 3, A-Law 2:1, Apple Lossless, Mace 3:1, Mace 6:1, QDesign Music 2, Qualcomm PureVoice, µ-Law 2:1, and various integer/Floating Point compression schemes) which can have widely varying audio data rates/settings.
3) Thus, by varying the DV stream and the MOV compression choices/combinations, I can make either the DV or MOV file appear to have a higher or lower (i.e., total) compression rate than the other. That is why I asked how you are making your comparisons and which specific codecs were being used.

Similar Messages

Looking for best soluce to compress a DVC Pro 25 movie 3min

Hi,
(sorry for my poor english, i'm french...)
I am looking for a good soluce to compress a DVC Pro 25 movie (during 3minutes).
I must to compress this movie to reduce the time to transfert by FTP a 750Mo file,
when the file is transfered, i must decompress to create a "new" DVC pro 25 for editing with final cup.
i think (but i'm not an expert in this domain) it is possible to obtain a good compression ratio ( 25%, 50%, or better ?)
Can you respond to me :
1) What is the better soluce , compressor ? or ohter software ?
2) What is the codec to use ? MPEG2, ... ?
3) What is the possible ratio
4) what is the time to compress on a mac pro ?
Thanks for all,
Best regards

Hi,
Thanks for your answer,
but my "problem" is that i dont have a mac,
i try to obtain a soluce for this situation to transfer quickly
and after the user must to edit the movie (letter, logo,...)
so, the quality must be "good" or "very good"
Are you sure the MPEG2 H264 codec is good for this ?
I know, i can with bitrate, adjust the quality, but i can't make a try...
If somebody can't try for me, just to inform the size after,
Thanks for all,
bests regard,
Laurent

Picture looks more fuzzy and compressed ONLY at start of movie

Hi there
I am using IDVD 6.02 on my MacBook Pro 17" Intel Duo. I am also running OSX 10.4.7.
I have made an Imovie project that begins with some imported titles (white text on a black screen) and then leads into the movie. When I make this full movie onto DVD, these opening titles are perfectly clear, but as the actual image part of the movie begins, the picture looks fuzzier/ more compressed than normal, but after about 10-15 seconds it seems to clear/ correct itself so the picture looks as it should. I have tried actually deleting that bit of footage and remaking the movie, but it still makes whatever the first part of the movie is, fuzzier. This fuzziness is not so bad, but there is a definite difference after the picture clears itself. The odd thing is that its only just started doing this. I have gone back through DVD's I made only a week or so ago and they are fine.
Does anyone know what this could be? Any help would be extremely appreciated.

Hi there
I am using IDVD 6.02 on my MacBook Pro 17" Intel Duo.
I am also running OSX 10.4.7.
I have made an Imovie project that begins with some
imported titles (white text on a black screen) and
then leads into the movie. When I make this full
movie onto DVD, these opening titles are perfectly
clear, but as the actual image part of the movie
begins, the picture looks fuzzier/ more compressed
than normal, but after about 10-15 seconds it seems
to clear/ correct itself so the picture looks as it
should. I have tried actually deleting that bit of
footage and remaking the movie, but it still makes
whatever the first part of the movie is, fuzzier.
This fuzziness is not so bad, but there is a definite
difference after the picture clears itself. The odd
thing is that its only just started doing this. I
have gone back through DVD's I made only a week or so
ago and they are fine.
Does anyone know what this could be? Any help would
be extremely appreciated.
I am also having problems with burning a DVD. 18mins into the movie it "Shakes and id fuzzy" but clears up after 4 minutes and the rest is fine. Tried a couple of makes of disc but no change.
If you hear anything about this would appreciate some feedback, Thanks

Compression help for skateboard web movie, please....

hi,
can anyone help me here?
ok,here is the situation.
i want to get the best compression (file size,quality etc) for a 6 min fast moving skateboard film with graphics and slow motion sequences.
i have compressor and quicktime pro too.
please give me some advice on whats best.
i would like to get near the quality of a normal mpeg comression.
thanks

I would stick with David's suggestion. You're going to have to compromise size and quality. Any time you're dealing with web media you need to be sensitive to file size and download times. In order to accommodate an acceptable file size that caters to your market you'll have to compress the video which in turn will degrade quality. If your not happy with 800 kbps h.264 try again with a slightly higher or lower bit rate.

Best Compression/Size setting for posting movie on Blog

Newbie here - Thanks for the help BTW.
I created a little movie from still pics through IMovie08. I exported it a few different ways to my desktop in order to get it on my IWeb blog page, but many of my friends and family were not able to open the file.
I believe it's a QT file now. What should I be doing to make this work for everybody? Is there a certain file type that is best for this situation?
Again - Thank you for any direction you can give me.

Welcome to the Apple Discussions. What I've done is use the File->Export for Web->Desktop option in Quicktime. Then one way to get it online and have a page load without waiting for the movie to completely load is to place the movie in your iDisk's Movie folder and add a button/link to a poster frame image of the movie via an HTML Snippet that will open the movie in a new window, one that is sized to the movie's size. This demo page is an example of such a button and has the code used in the snippet.
if the Export to Web is till too large post in the Quicktime to see what you might find there. You can still use the button snippet to make the page load quicker.
OT

I movie w/ spliced pics throw off movie when uploaded to youtube? The pics lag and is now off with the audio. Doesn't happen with video, just pics and it's worse if I splice the pics to fit audio. Suggestions?

This is really annoying. I movie hd works well when compressing it to quicktime and uploading to youtube but when there's pics involved and I have to slice them to fit audio it messes with the timing in conjunction to the audio. Any ideas? It works fine in quicktime when compressed but once it's uploaded to youtube it acts fishy. Even though it's fine in quicktime it seems to be an issue in I movie and how it's compressed or something.
I movie HD- 5.0.2
quicktime player- 7.5.5
Compression settings
compression: h.264
quality: high
key frame rate:24
frame rec: yes
encoding mode: multi pass
dimensions: 320x 240
sound
format: acc
sample rate: 48.000khz
channels:mono
bit rate:64kbps

That's fantastic, worked really well, just like you said. I actually didn't expect such an easy solution to my problem, thanks very much.
It had the added bonus that it allows me to import the files quicker than before to iMovieHD if I am editing them.
Thanks again

*Some* movies in iPhoto not showing in iMovie

Over the last few years I have shot many movies on my Canon S400 and loaded them into iPhoto. All my movies are .avi format. However, iMovie is not recognizing them all so some are not showing up in the Event Library. This problem appeared directly after the last update when it rebuilt the thumbnail library. Does anyone know how to get iMovie to recognize the previously viewable videos?

Thanks, but I need to clarify - this is not a matter of iMovie 08 not recognizing compressed formats. All the movies are from the same camera, as raw .avi's, and non-compressed or edited in any way.
Please clarify further. Am interested in how you define what "raw AVI" is. Have never heard of any form of digitized audio or digitized video that was not coded (i.e., compressed) in one form or another. Please explain how that works. Better yet, please post a screen capture of of the QT Player "Inspector" window showing the format of this "raw AVI."
iMovie is for some reason erroneously not seeing some of them.
As stated above, iMovie '08 can't "see" anything it can't edit.
I was able to export one of the "unseen" videos to my desktop and import it into iMovie 08 from there
I hate to break the news to you, but exporting, by definition, implies a re-compression of the file. And, unless you exported to the very same compression format with the very same settings, you have "converted" the file. In fact, even then, the possibility exists that the file may have been 'flattened" with the end result that an incompatible track may have been discarded or merged into the core audio/video tracks and thus made the file compatible.
but that's a lot of needless hassle.
Better get used to it. Until you can show that both the audio and video tracks are compatible and that there is no other content (such as a "Tween" track) included in the file, there exists at least a presumption that your AVI files as uploaded from your digital camera may not be "edit" compatible with iMovie '08. You can, of course check on this yourself by comparing the the "Inspector" information of you non-importing files with that of your imported file.
All the videos are in the same .avi format.
Are you sure. Some digital cameras have multiple video clip modes which may either changed settings within the same compression formats or actually change the compression formats.
All of them were recognized and worked just fine before the last update. Now, some get recognized by iMovie 08, some others don't.
Apple may have changed "error trapping" routines for the update you referenced. It may be checking intersects of audio data rates against audio sampling rate "standards" now. If you check export combinations you will find that only certain combinations are allowed in QT. Once again, you could help yourself tremendously by simply comparing the statistics of files that work with those of ones that don't work.
This is NOT as issue due to compression formats.
You keep saying this but offer nothing in the way of evidence to support your assertions.

11.2.0.3.3 impdp compress table

HI ML :
源库： 10.2.0.3 compress table
target ： 11.2.0.3.3 impdp 源端的compress tables，在目标端是否是compress table
之前在10g库直接通过impdp dblink 导入时候发现，入库的表需要手工做move compress。
MOS 文档给的的测试时在10g开始支持导入自动维护compress table ：
Oracle Server - Enterprise Edition - Version: 9.2.0.1 to 11.2.0.1 - Release: 9.2 to 11.2
Information in this document applies to any platform.
Symptoms
Original import utility bypasses the table compression or does not compress, if the table is precreated as compressed. Please follow the next example that demonstrates this.
connect / as sysdba
create tablespace tbs_compress datafile '/tmp/tbs_compress01.dbf' size 100m;
create user test identified by test default tablespace tbs_compress temporary tablespace temp;
grant connect, resource to test;
connect test/test
-- create compressed table
create table compressed
id number,
text varchar2(100)
) pctfree 0 pctused 90 compress;
-- create non-compressed table
create table noncompressed
id number,
text varchar2(100)
) pctfree 0 pctused 90 nocompress;
-- populate compressed table with data
begin
for i in 1..100000 loop
insert into compressed values (1, lpad ('1', 100, '0'));
end loop;
commit;
end;
-- populate non-compressed table with identical data
begin
for i in 1..100000 loop
insert into noncompressed values (1, lpad ('1', 100, '0'));
end loop;
commit;
end;
-- compress the table COMPRESSED (previous insert doesn't use the compression)
alter table compressed move compress;
Let's now take a look at data dictionary to see the differences between the two tables:
connect test/test
select dbms_metadata.get_ddl ('TABLE', 'COMPRESSED') from dual;
DBMS_METADATA.GET_DDL('TABLE','COMPRESSED')
CREATE TABLE "TEST"."COMPRESSED"
( "ID" NUMBER,
"TEXT" VARCHAR2(100)
) PCTFREE 0 PCTUSED 90 INITRANS 1 MAXTRANS 255 COMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "TBS_COMPRESS"
1 row selected.
SQL> select dbms_metadata.get_ddl ('TABLE', 'NONCOMPRESSED') from dual;
DBMS_METADATA.GET_DDL('TABLE','NONCOMPRESSED')
CREATE TABLE "TEST"."NONCOMPRESSED"
( "ID" NUMBER,
"TEXT" VARCHAR2(100)
) PCTFREE 0 PCTUSED 90 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "TBS_COMPRESS"
1 row selected.
col segment_name format a30
select segment_name, bytes, extents, blocks from user_segments;
SEGMENT_NAME BYTES EXTENTS BLOCKS
COMPRESSED 2097152 17 256
NONCOMPRESSED 11534336 26 1408
2 rows selected.
The table COMPRESSED needs fewer storage space than the table NONCOMPRESSED. Now, let's export the tables using the original export utility:
#> exp test/test file=test_compress.dmp tables=compressed,noncompressed compress=n
About to export specified tables via Conventional Path ...
. . exporting table COMPRESSED 100000 rows exported
. . exporting table NONCOMPRESSED 100000 rows exported
Export terminated successfully without warnings.
and then import them back:
connect test/test
drop table compressed;
drop table noncompressed;
#> imp test/test file=test_compress.dmp tables=compressed,noncompressed
. importing TEST's objects into TEST
. . importing table "COMPRESSED" 100000 rows imported
. . importing table "NONCOMPRESSED" 100000 rows imported
Import terminated successfully without warnings.
Verify the extents after original import:
col segment_name format a30
select segment_name, bytes, extents, blocks from user_segments;
SEGMENT_NAME BYTES EXTENTS BLOCKS
COMPRESSED 11534336 26 1408
NONCOMPRESSED 11534336 26 1408
2 rows selected.
=> The table compression is gone.
Cause
This is an expected behaviour. Import is not performing a bulk load/direct path operations, so the data is not inserted as compressed.
Only Direct path operations such as CTAS (Create Table As Select), SQL*Loader Direct Path will compress data. These operations include:
•Direct path SQL*Loader
•CREATE TABLE and AS SELECT statements
•Parallel INSERT (or serial INSERT with an APPEND hint) statements
Solution
The way to compress data after it is inserted via a non-direct operation is to move the table and compress the data:
alter table compressed move compress;
Beginning with Oracle version 10g, DataPump utilities (expdp/impdp) perform direct path operations and so the table compression is maintained, like in the following example:
- after crating/populating the two tables, export them with:
#> expdp test/test directory=dpu dumpfile=test_compress.dmp tables=compressed,noncompressed
Processing object type TABLE_EXPORT/TABLE/TABLE
. . exported "TEST"."NONCOMPRESSED" 10.30 MB 100000 rows
. . exported "TEST"."COMPRESSED" 10.30 MB 100000 rows
Master table "TEST"."SYS_EXPORT_TABLE_01" successfully loaded/unloaded
and re-import after deletion with:
#> impdp test/test directory=dpu dumpfile=test_compress.dmp tables=compressed,noncompressed
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "TEST"."NONCOMPRESSED" 10.30 MB 100000 rows
. . imported "TEST"."COMPRESSED" 10.30 MB 100000 rows
Job "TEST"."SYS_IMPORT_TABLE_01" successfully completed at 12:47:51
Verify the extents after DataPump import:
col segment_name format a30
select segment_name, bytes, extents, blocks from user_segments;
SEGMENT_NAME BYTES EXTENTS BLOCKS
COMPRESSED 2097152 17 256
NONCOMPRESSED 11534336 26 1408
2 rows selected.
=> The table compression is kept.
===========================================================
1 到底11.2.0.3 是否支持impdp自动维护compress table 通过dblink 方式？
2
This is an expected behaviour. Import is not performing a bulk load/direct path operations, so the data is not inserted as compressed.
Only Direct path operations such as CTAS (Create Table As Select), SQL*Loader Direct Path will compress data. These operations include:
•Direct path SQL*Loader
•CREATE TABLE and AS SELECT statements
•Parallel INSERT (or serial INSERT with an APPEND hint) statements
Solution
The way to compress data after it is inserted via a non-direct operation is to move the table and compress the data:
以上意思在10g之前是必须以上方式才能支持目标端入库压缩表，10g开始支持自动压缩？貌似 10g也需要手工move。

ODM TEST:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> create table nocompres tablespace users as select * from dba_objects;
Table created.
SQL> create table compres_tab tablespace users as select * from dba_objects;
Table created.
SQL> alter table compres_tab compress 3;
Table altered.
SQL> alter table compres_tab move ;
Table altered.
select bytes/1024/1024 ,segment_name from user_segments where segment_name like '%COMPRES%'
BYTES/1024/1024 SEGMENT_NAME
              3 COMPRES_TAB
              9 NOCOMPRES
C:\Users\ML>expdp maclean/oracle dumpfile=temp:COMPRES_TAB2.dmp tables=COMPRES_TAB
Export: Release 11.2.0.3.0 - Production on Fri Sep 14 12:01:12 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Starting "MACLEAN"."SYS_EXPORT_TABLE_01": maclean/******** dumpfile=temp:COMPRES_TAB2.dmp tables=COMPRES_TAB
Estimate in progress using BLOCKS method...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 3 MB
Processing object type TABLE_EXPORT/TABLE/TABLE
. . exported "MACLEAN"."COMPRES_TAB"                     7.276 MB   75264 rows
Master table "MACLEAN"."SYS_EXPORT_TABLE_01" successfully loaded/unloaded
Dump file set for MACLEAN.SYS_EXPORT_TABLE_01 is:
D:\COMPRES_TAB2.DMP
Job "MACLEAN"."SYS_EXPORT_TABLE_01" successfully completed at 12:01:20
C:\Users\ML>impdp maclean/oracle remap_schema=maclean:maclean1 dumpfile=temp:COMPRES_TAB2.dmp
Import: Release 11.2.0.3.0 - Production on Fri Sep 14 12:01:47 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "MACLEAN"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "MACLEAN"."SYS_IMPORT_FULL_01": maclean/******** remap_schema=maclean:maclean1 dumpfile=temp:COMPRES_TAB2.dmp
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "MACLEAN1"."COMPRES_TAB"                    7.276 MB   75264 rows
Job "MACLEAN"."SYS_IMPORT_FULL_01" successfully completed at 12:01:50
1* select bytes/1024/1024 ,segment_name from user_segments where segment_name like '%COMPRES%'
SQL> /
BYTES/1024/1024 SEGMENT_NAME
              3 COMPRES_TAB
SQL> drop table compres_tab;
Table dropped.
C:\Users\ML>exp maclean/oracle tables=COMPRES_TAB file=compres1.dmp
Export: Release 11.2.0.3.0 - Production on Fri Sep 14 12:03:19 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
About to export specified tables via Conventional Path ...
. . exporting table                    COMPRES_TAB      75264 rows exported
Export terminated successfully without warnings.
C:\Users\ML>
C:\Users\ML>imp maclean/oracle fromuser=maclean touser=maclean1 file=compres1.dmp
Import: Release 11.2.0.3.0 - Production on Fri Sep 14 12:03:45 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export file created by EXPORT:V11.02.00 via conventional path
import done in ZHS16GBK character set and AL16UTF16 NCHAR character set
. importing MACLEAN's objects into MACLEAN1
. . importing table                  "COMPRES_TAB"      75264 rows imported
Import terminated successfully without warnings.
SQL> conn maclean1/oracle
Connected.
1* select bytes/1024/1024 ,segment_name from user_segments where segment_name like '%COMPRES%'
SQL> /
BYTES/1024/1024 SEGMENT_NAME
              8 COMPRES_TAB
                 我的理解对于direct load 总是能保持compression
但是 imp默认是conventional path 即使用普通的走buffer cache的INSERT实现导入所以无法保持compression
而impdp不管 access_method 是external_table还是direct_path 模式都可以保持compression

Adjust video compression within iWeb?

Is there any way to adjust the QT video compression when posting movies via iWeb? Currently, my wife opens iWeb, and then selects movies from within the media pane (specifically, the iPhoto library). These have not been compressed in iPhoto, and as she's not very techie, I don't want her to have to go through that hassle.
It seems strange that, from within iWeb, there is no video settings for compression. Right now, a 30 second video can be 50 MB or more. That is ridiculous.
Any thoughts on how to compress without adding a bunch of complicated steps?

Yes, it's very ridiculous that an application for creating webpages has no features for compressing video.
And the movies in iPhoto are usually the raw material that comes out of a camera. They have to be edited too.
Perhaps an application for editing movies does what you want. iMovie comes to mind. What a burden.

Export/Encoding/Compression Error

I have been trying to burn a DVD for the last week without any success using iMovie and iDVD.
When trying to burn the DVD on iDVD, the program would "Unexpectedly Quit" while it is encoding the movie. It would encode the first 2-3 minutes of the movie before the program quits. Furthermore, when I try to save the project to a Disk Image, the program unexpectedly quits too.
Since I noticed that the program was quitting during the encoding process of the first movie, I tried exporting the first movie into another format such as QuickTime and MPEG-4 using iMovie. QuickTime immediately prompts the message:
"A file compression error occurred. The movie could not be properly compressed. THe movie may contain some data that is invalid for the type of compression selected."
The project consists of JPEG's, Quicktime MOV's with sound(from a Kodak Digital Camera), and M4p's (purchased through iTunes). I would believe all these formats are compatible with iMovie since they are all imported successfully. When trying to export to MPEG-4 with Audio (AAC-LC), the encoding processes half way, then quits unexpectedly.
On an interesting note, when I encode the same movie using MPEG-4 with NO AUDIO, the encoding process completes successfully. I am suspecting that the issue may have to involve the Audio.
Out of the 9 iMovie Projects I included in my DVD, 5 of them could be exported into Quicktime MOV's correctly, while the other 4 would cause the program to quit. I noticed that the 5 that do work are all under 5 minutes of video and audio. The other 4 that say "A compression error occurred". I do not know if this somehow attributes to the problems.
Is there anything I can do to encode these 4 movies correctly?
If it is an issue with the audio compression, is there a work around for it?
If I am able to encode these movies correctly on iMovie, should the encoding process for iDVD work correctly also?
Any help anyone could provide would be greatly appreciated. Thank you.
Mac Mini 1.42GB Mac OS X (10.4.3) 1 GB Ram

Hi ebm - not sure that I can help much, but a few observations:
iMovie converts M4P files to AIFF, so that shouldn't cause a problem.
The .MOV files from the Kodak still camera may be more problematic - are you sure that the audio on them plays in iMovie? What format are those files - perhaps they're mpeg4?
I cannot see why you would want to convert the movie to MPEG4.
What about creating a QT (Full Quality) file of each movie, then open iDVD and drag them into the iDVD window. If their combined length is less than 60 minutes, you could use the Best Performance setting with background encoding ticked (in iDVD Preferences) - you can then watch them as they encode.
Of course, Best Quality may produce a slightly better result, but the encoding occurs after you click Burn.
Good luck!

H264 - difference between MOV / MP4 container?

Hi Folks,
I'm compressing broadcast video from PR422 Quicktime to an intermediate quality / size movie (for ease of transfer by internet).
My associate is using Sorenson Squeeze to compress this intermediate file to a smaller FLASH FLV file for web delivery.
Is there any difference or advantage in the intermediate file (H.264 Codec) being rendered into Quicktime (mov) or MP4?
Thanks for any input ...
Gary
(PS - i notice that when I render in MOV format, with a simiar data rate to MP4, there's noticeable pixelation and artifacts in the output ... Premiere doesn't seem to handle MOV renders with anywhere near the quality that Final Cut did .. ?!)

hi Jon,
the "MOV vs MP4" quandry was for an intermediate stage of file delivery, as I mentioned in my 1st post. I'm mastering in ProRes 4:2:2, (6 gig), compressing to "intermediate" (MP4 vs MOV), then sending this "intermediate" by file transfer to an associate who compresses via Sorenson Squeeze to a 150 Meg Flash FLV file.
He uses this "intermediate" file I send as his source material for Sorenson Squeeze.
In the past, I used Final Cut Express' MOV output to a 350 Meg file with good resolution. Premiere CC's "good" resolution for this intermediate file weighs in at 700 Meg; it's 350 Meg output is badly pixelated.
I'm switching to MP4 as "container-type" for the intermediate file, which produces a nice output around the 350 Meg mark. Either "container" (MOV or MP4) holds the H.264 codec, so it's odd that MOV output is so distorted.
Anyway, we'll stick with MP4 for now. My "Squeeze" guy was kind of stuck on Quicktime for some reason ...
Gary

Unable to compress.

I'm new to Leopard as of two days ago. I am trying to compress a file, but the .zip file that results is the same size as the original, which I can't e-mail. I've checked permissions for the file as recommended by Mac Help, but the file still will not compress to a smalller size. Is there something I'm doing wrong or that I just don't know?

Not in the sense you're talking about (lossless file compression to .zip). A movie can be compressed lossily through video compression (programs such as Quicktime Pro or Compressor) which results in a smaller file size, with some degradation of video quality depending on the compression type (eg, to MPEG-4).
The same applies to audio - you can try to compress an AIFF file to .ZIP, but probably won't get the file much smaller; however, if you use iTunes to (lossily) compress the audio to mp3, you will get a nice size saving.
Matt

Can someone help me with compression of video files?

I am trying to compress some videos to put on my iPod video. I run them through QuickTime Pro 7 or whatever the latest one is, and I compress the file using the "movie to iPod" preset. When it finishes, it gives me the original .mov file which is huge still, and this other file that is about 1MB. then if I try to throw away the original file, the new one will not play. Why is isnt it just giving me a smaller file of the movie after compression?? I dont understand whats going on. If I wanted to put a movie on my iPod, do I have to keep the original file which is like 20GB? It doesnt seem right. PLEASE HELP ME!!!!!
Thanks

It should be part of the "save as" dialogue.
(Hinted streaming is an elephant.)
P.S. Try the QuickTime forum if you can't get it to work.

Flash movies won't play in document or browser

Hi there,
I am having problems with putting flash movies onto my website. I know this is a common problem so apologies for any repetition.
I have trawled through a lot of forums trying to solve this issue and so far have not found a solution that works for me.
First of all I'm using dreamweaver v7, on a macbook OSX (intel)
On inserting flash movie, only the box with 'f' apears in the document, and in browser, nothing at all. It doesn't worry me so much that the movie doesn't appear in the doc, as with shockwave it's the same. However shockwaves play fine in browser.
I have tried the following so far:
- moved the movie .flv file to the same folder as the html document that it relates to
- made the file name really, really simple. 6 letters and no other characters.
- tested in alternative browsers
- tried inserting another flash object (flash button) to see whether the problem resides in inserting flash objects, or if the problem is with the movie file itself (the flash button worked, so I thought the movie file must be the problem) - so then ...
- I tried compressing the movie in a different programme - I tried sorenson squeeze - still nothing
- As inserting the movie as a quicktime works fine using 'insert shockwave', I even tried changing the file extension of the QT version from .mov to .swf as I read somewhere that it might work (!!!??) but it didn't though the movie still played without dreamweaver
So, I reach the conclusion that the movie is not after all the problem - but what is? since inserting other flash objects does work?
Very confused! Thank you for any help offered.... Laura

I am a bit confused though - is flash video not the same as flash movie?
No. Flash refers to its files as movie files. FLA (editable) and SWF (compressed for Web) are Flash movies - not to be confused with cinema. FLV files are Flash Video files.
Just to confuse matters some, just prior to the creation of the .flv format, it was not uncommon to import videos into Flash and save them as .swf movies (videos). But that was only good for very short, very small videos.
Additionally, since you brought it up, Shockwave files are also referred to as movies. But they are created by Director, not Flash. Director, like Flash, refers to its files as movie files. DIR is the editable file and DCR is the Shockwave-compressed file for the Web. The Shockwave plugin is not the same as the Shockwave Flash plugin. Shockwave Flash cannot play Shockwave movies, but Shockwave movies can play Flash .swf movies - neither of which are videos.
How's that for clear as mud?
Mark A. Boyd
Keep-On-Learnin' :-)
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Why are my trimmed QT movies larger than the original?

I have a bunch of raw .dv files copied over from my camcorder that have never been edited or opened in any other program. When I open in QT X and trim the file, the trimmed MOV version is often larger than the raw DV. On one file, I even trimmed about half of it away and it still came out larger. I was under the assumption that DV is not compressed and neither is raw MOV,
After trimming the file and saving it, I select "movie" as the format since at this point I want to leave the files in as raw as a format as possible before I bring into an editing program like iMovie.
Any ideas?
Thanks

Since QuickTime X doesn't have any export "options" (other than dimensions) a "raw" DV Stream format should always be smaller in file size.
DV Stream is about 13 GB's per hour of recording. A QuickTime X "conversion" would use H.264 video and AAC audio codecs and should be about ten times smaller in file size.
Are you sure your files are DV Stream?
In any event, QuickTime X may not be the best tool for the job.
QuickTime Player Pro doesn't re-compress the source codec if you use a simple "save" or "save as".
A regular "save" after doing any edits will replace your source file with the newer version. No way to restore any of the edited information so you should use save as (keeping the original).

Lowest compression QT.dv or QT.mov?

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