IDVD 5 vs iDVD 6: multiprocessors, encoding speed and quality

I complained in another thread that iDVD 6 was taking twice a long as iDVD 5 to encode DVDs. Most everyone who has upgraded from 5 reports slowdowns but the amount varies. To learn more I encoded the identical project (using iDVD 5 menus only) in both versions, both set to best quality. It contained 81 minutes of video, three menus 2 transitions and nothing else.
Video Encoding:
The most important thing I learned is that multiprocessor support has been reduced in iDVD 6. CPU usage during video encoding was:
iDVD 5: 240-270%
iDVD 6: 140-170%
So, iDVD 6 seemingly will not recognize more than 2 processors. This would explain why dual G4 and G5 users would see a slow-down but perhaps not as great a slow-down as Quad users. I certainly hope Apple will restore more complete multiprocessor support in a future update.
However - The final project in iDVD 6 ends up slightly larger than in iDVD 5. My son (a professional video editor) suggested that perhaps iDVD 6 is also encoding to a higher quality, accounting for some of the slowdown and larger size. Based on a purely subjective inspection of the same scenes (from close up) at full screen on a 23 inch monitor I think this is right. iDVD 6 encoding seems to leave fewer artifiacts, less pixillation and blurring and so on than iDVD 5. Depending on the source of your video and where you view your DVDs this difference may, or may not, be important (or even real, maybe I imagined it) and thus worth the extra time. For me, it's not worth the extra time so I'm going back to iDVD 5 for now.
Menu Rendering:
Neither version uses multiple processors for rendering menus so the time difference between the two wasn't as great and both only use 2 processors for encoding the video portion of menus, so there was only a small difference in time between the two version for this part of the project.
Audio Encoding:
The same is true for encoding audio - only 2 processors are used in either version so the time difference doesn't vary much here either.

perhaps iDVD 6 is also encoding to a higher quality, accounting for some of the slowdown and larger size.
That may be true. My last project seemed to fill up a SL DVD, even though it was 1 hour 27 minutes long. Prior to QuickTime 7.1, it even overfilled an SL DVD:
http://discussions.apple.com/thread.jspa?threadID=467718&tstart=60

Similar Messages

Encoder speed and orientation on NI 9401 in cDAQ-9172

Hello, I've acquired a ni 9401 module for my cDAQ-9172 and it's now installed in slot five to connect a dual channel encoder. Channel A is connected to pin 14 and channel B to pin 17 and the encoder is powered by 5v dc.
I want to mesure the speed and if possible the orientation of rotation.
To do this I started with the VI in attach, that can count the total of pulses in the encoder.
My question is, how can I change the DAQmx Create Channel to Frequency, and the DAQmx Read to Counter Pulse Freq 1 Chan 1 Samp, to calculate the actual encoder speed and orientation?
Solved!
Go to Solution.
Attachments:
encoder.vi ‏63 KB

Hi Eric.
Once again, thank you very much for the help.
I think I finally did it. The Vi is reading the speed witch I think is right, but there's some oscilation.
I've connected only the signal A from encoder to pin 14 on the NI-9401, and the pin 1 to ground. The signal B is not connected right now because I only have one NI-9401 on a cDAQ-9172, so only one counter.
The VI you just send me, is calculating the speed (frequency), witch I divid by 200 because those are the pulses per revolution of the encoder, but I can see a little of oscillation on the speed measured (see picture in attachment).
For now, my question is if is possible to improve the measurement, and how?
Thank you.
André Quintino.
P.S. - Note that in the picture in attachment, the speed is the one measured by the VI you just send me. The encoder was running at 1524RPM witch are 25,4Hz. Since the speed in the graph is multiplied by 200 (the pulses per revolution of the encoder), this result in a measurement of 5080 witch is the average number by the graph.
Attachments:
Screen shot 2011-01-12 at 00.41.13.png ‏16 KB

IDVD will only burn to 16X discs and not 8X

I replaced my original superdrive with a pioneer DVR-100 because it can burn at 16X speed and dual layer. Now, iDVD will only burn to 16X discs. When I try to use 8X discs I get an error message. iDVD will begin to write, the disc will spin up twice, then the disc is ejected. The really annoying thing is that it makes those discs unusable.
Any ideas how to fix this.

What brand DVD-R?
I burn Verbatim DVD-R 16X at 4X all the time using a disk image and Toast (or Disk Utility). Try Verbatim. I use other brands too. In both of my "SuperDrives."
Suggest you create a disc image and then burn the DVD. File/Save As Disc Image...
http://docs.info.apple.com/article.html?artnum=164927
This will isolate any encoding/burning issues you may encounter. Once the disc image is created, double-click the .img and burn the virtual disc that should appear on your desktop, using Toast to burn the DVD. Disk Utility to burn the .img file. Usually, you can select a burning speed in Disk Utility.
There are variations to this process based on which OS X you are using...
Open Disk Utility (in Utilities folder in Applications folder), click on the virtual disc (maybe the .img) in the left-hand window. Click the Burn icon. A new window should drop down and your SuperDrive tray will open after clicking the Burn icon. Insert a recordable DVD. (Verbatim DVD-R preferred by me.) Click the Close button. Wait. Select a burn speed. Then click the Burn button.
-->If the virtual disk selection won't allow you to click the Burn icon, use the .img file instead. This may have changed in 10.3.9 and did change in Tiger.
Also, you can use DVD Player to play the virtual disk to check your iDVD 5 project before burning to DVD. Launch DVD Player. File/Open VIDEO_TS (Open DVD Media... in Player 4.6). Find the VIDEO_TS folder and open that. (The audio folder is for DVD-Audio disks.)
http://docs.info.apple.com/article.html?artnum=93006

Why does iDVD keep giving me a multiplexing error and ejects my DVD?

I have tried several times to create a simple movie with iMovie and iDVD. Both are from the iLife 6.0 series. Each time, the movie imports to iDVD okay, goes through all the asset encoding just fine, and when it get to multiplexing and burning, it stops with a message saying there was something wrong with the multiplexing or asset encoding and ejects the DVD. Help. I am at my wits end with this.
dennis

Hi
Multiplex Error - is one of the most complex error to run into - can be so much
see (especially new info at end of list)
MULTIPLEX ERROR !
Multiplexing error is a very complex problem due to many things (long long list following) - one common but not obvious reason is that material on the iDVD menu goes outside the TV-Safe area (or just touching it).
So first - turn on TV-Safe area and move any object well inside of this.
Wide screen stretched - usually (as I think) it is due to making a 4x3 movie in a 16x9 wide-screen project OR the other way around. This forces one to on flat-screen TV (or other) set the presenting view right - My has 4x3, wide-screen, zoom and auto-wide-screen and I have to switch this by my remote for some DVD I've made "wrong" way.
Now my long long list on Multiplex Error
LONG LONG LONG LIST
Multiplexing Error
PART One.
Use of strange video/audio material e.g. .avi, .wmv, .mp3 etc.
I only use.
Video - StreamingDV (miniDV tape via FireWire) and
Audio - .aiff (as on audio-CDs) (else converted to this .aiff 48KHz)
Photo - .jpg (.bmp known problematic)
Chapters !
A. Using strange letters in video project name e.g. +,/; etc. keep to a-z and 0-9 strange letters in project name e.g. +
as described by Donnyboy69. Does the title of your project have any symbols or decimal points in it. If so, that is why you are getting the error. I had a project that had a + sign which caused the same problem. I renamed it without the symbol and low and behold, it worked.
B. Location of Chapters
• Can’t be at start or end of movie (Skip first/start one - iDVD sets this by it self. At the End - no need)
• Not in a transition (or within 2-3 seconds from it)
Important when from iMovie HD6 or previous - Now also observed when using FCE 4
PART Two.
from Robert Modero.
"Multiplexing Error. Problem during initialization of tracks"
Simply remember to add subtitles to your Quicktime files and menu buttons.
Once I did that, I was back in business.
from Boise Jim
Do a safe reboot (by holding down the shift key until you see the spinning gear on gray background, then release, then restart when your start-up screen appears).
I always makes a DiskImage first and test this so that it runs OK
I use only - Verbatim DVDs
I use only - DVD-R
I burn at an as slow speed possibly e.g. x1
This gives good DVDs
PART Three.
Multiplex Error
Chuck, Chicago 2/7/2009.
Back again. Here is what I have found to work. I also have and use a LaCie DVD-R/RW DL external drive and a LaCie external hard drive as well. Since yesterday I have tried a few ways to burn a themed iDVD project having four 56 minute movies on it, amounting to 226 minutes onto a DVD DL disc, capacity 240 minutes. Apple tech support really didn't know what to do but gave me a very good tip. I had two options left. Apple tech support's tip was to try disc image. One of the replies on a thread with this subject said not to, but my experience today is good. Put your project onto "Burn to disc image," under "iDVD, file." Yesterday encoding took me 23 1/2 hours. Overnight for iDVD disc image, encoding took 21 1/2 hours (again) while I slept. This morning I tried to copy/burn disc image to a DVD with Roxio Toast 7, and it stopped near the end of the burn with some kind of "error" message. So then I tried Utilities> Disc Utility> Burn icon, and followed it through. Be sure to click the DVD DL drive in the window "Burn disc in.". I had one other problem though. At the end of a 46 minute copy, it started to verify, and at the end of verify it rejected the burn. So I tried again, and when "verify" appeared, I clicked on "Skip." The disc finished burning and is doing fine and well. A long and tortuous process, but at last something works. I made several additional copies using Disc Utility. Best wishes. Chuck, Chicago.
2. Disconnect any other external devices not absolutely needed.
e.g. external USB/USB2 hard disks, other FW hard disks etc.
3 Chapter marks in transitions - minimum 2 sec from
FROM Bev. (Not a 'guy' but I will answer!)
First, I do not think that mixing wide-screen and standard makes a difference in iDVD.
Second, you should use a better brand of DVD disk. Also, many of us have experienced fewer problems on playback with DVD-R disks. Recommended brands here are Verbatim, Maxell and Taiyo Yuden. Memorex and TDK are not consistent and may not give you a correct burn. They apparently have fewer layers in the composition of the disk. I have always used Verbatim DVD-R disks and have not had any burn problems.
Also, choose a slower burn speed, 4x or less.
Third, to determine if the iDVD project will burn properly, create a disk image file (from within iDVD, go File->Save as Disk Image) and test it. Mount the disk image and then open DVD Player (in Applications) and view your project. If it plays correctly, you can then burn the actual DVD disk from the disk image file using Disk Utility.
From. Boise, Idaho
I did everything I've seen suggested, but a friend (who used to be an Apple Genius) suggested that I do a safe reboot (by holding down the shift key until you see the spinning gear on gray background, then release, then restart when your start-up screen appears).
It worked, and I got a clean burn from iDVD.
Hopefully this can help other people.
by dheb0422
Well, I finally got it, and it was odd enough to post here incase anyone looks this topic up again. Many things were tried, including burning the unedited film, the edited film without titles and chapter markers, abbreviating the chapter markers in case length was the issue (remember the old iMovie used to truncate them when moving to iDVD?). In the process, I noticed that one, and only one, chapter marker was on the same line as the title marker. All the others were on the line above. The only way I seemed able to change that was to clip a few seconds of film. After that last clip, the offending marker took a place on the line above, as were all the others. That run published, compiled completely and burned. That's one for the books.
One user more writes
To add my experience with Multiplex Errors using iDVD (7.0.4), I recently created two iDVD projects
Video from both passed from FCE 4.01 with chapters
One project worked fine in creating disk image file
The other gave Multiplex Errors
I tried suggestions to remove special characters and no chapter marks at beginning, but nothing worked
Note that I've used iDVD for dozens of projects and this is first time I've run into Multiplex Errors
Anyway, for problem project, I tried an experiment where I removed all chapters in FCE and passed to new iDVD project
This time multiplex errors gone
So had something to do with chapters
So now I tried numerous experiments to remove individual chapters and try again creating disk image with new iDVD project
After numerous tries, I was able to narrow problem down to 1 "Bad" chapter mark
That is, when I left the "bad" chapter in my FCE project and passed to iDVD, iDVD gave multiplex error
When I removed "bad" chapter mark (and others in), no multiplex error
As a final experiment, I moved "bad" chapter mark about 5-10 sec's beyond original point and passed to iDVD, the multiplex errors now magically went away and I was able to finally create my disk image.
I have no idea why this worked, but thought I'd mention here in case someone else runs into similar problem.
Rich839
In addition to Bengt's fine advice, burning errors can occur if you have located any of your menu buttons wholly or partly outside of the safe TV viewing area. Go to your main project menu, then click on View/Show TV Safe Area, to check. Drag into the safe viewing area any buttons that are outside the safe viewing area.
Russ One - suggest this
Multiplex Error-There was an error during muxing preparation
One thing that worked for me was to export the video w/o chapter markers as a self contained movie (thereby not loosing the edits & etc). Then make a new FCE project and import that movie into a new sequence and add the chapter markers. I've used "-", "&" and "," with no problem in the chapter names. Removing the markers or exporting without them did solve the problem but renaming them with just numbers 1,2,3....5, did not solve the problem and since this problem seems to happen with with iMovie as well, it would suggest the problem is in the video or audio and in combination with the chapter markers iDVD just can't handle it. The only other possibility is that both iMovie and FCE share the same or similar chapter marker code that some how is corrupting the markers.
Summary - What to try
1. Chapters
• Only A to Z and 0 to 9 in chapter title
• No Chapter mark at very beginning of movie
• No Chapter mark in or within 2 seconds from any transition in movie
2. TV-safe area for buttons (no one outside this)
3. Safe re-boot
4. No other external devices connected - that are not needed
SDMacuser adds to this
• On #4 ... No ext. devices. Some think this applies mainly to ext. FW. Not the case. Also applies to ext. USB2 as well (not to mention flash drives too).
Do not leave 3rd party devices / camera / camcorder plugged in unless it is being used with iDvd's One Step process. Certain web cams can trigger this also (especially ones with added features like LED light/s that draw additional power from the FW or USB bus).
5. Minimum of 25Gb free space on Start-up hard disk
6. Make a DiskImage first - reduces where problem originates
7. Trash iDVD pref. file
8. Make a new iDVD project
9. Movies in project with same aspect ratio e.g. 4x3 or 16x9
10. No other programs/applications running during iDVD process. e.g. Internet, screen & energy savers
Max Mccarty
Mar 29, 2013 7:55 PM
I've made literally hundreds of DVD's using iDVD and I occasionally get the dreaded "Multiplex Error". In the past changing the position of chapter markers has worked, but sometimes the only way I can get the DVD to burn is to remove all the chapter markers (not a great solution).
Recently, I've discovered a bug in iDVD that creates the "Muliplex Error" message and it may be the cause of some of my previous problems. Sometimes when you export a movie to iDVD with chapters, it will create chapter menus with incredibly long playing times. My most recent "Multiplex Error" project had two chapter menus. I have a 38 second audio clip that I use for my DVD menus and the first menu showed the correct time of 38 seconds (select View>Show Inspector). The second menu with the same audio clip showed 13 minutes and 42 seconds! When I went to the Project Info window (select Project>Project Info) it now showed the total size of my DVD as 4.8 GB, too big for iDVD to encode. So, I manually adjusted the time of the second menu to 38 seconds. This time without changing anything else, iDVD burned the disk perfectly.
The interesting thing is that when I began the burn, the project info showed under 4GB for my disk. So, from now on I'll check the playing times of each menu before I burn.
Yours Bengt W

Idvd ejects the disk during the "multiplexing and burning" / "writing lead-in" portion. When I check, there's nothing on the disk

idvd ejects the disk during the "multiplexing and burning" / "writing lead-in" portion. When I check, there's nothing on the disk.

What brand and type of disk are you using? What speed are you burning at? Are you able to create a disk image of the project?
Try this basic troubleshooting fix:
1 - delete the IDVD preference file, com.apple.iDVD.plist, that resides in your
User/Home/Library/ Preferences folder.
2 - delete IDVD'S cache file, Cache.db, that is located in your
User/Home/Library/Caches/com.apple.iDVD folder.
3 - launch IDVD and try again.
NOTE: In Lion and Mountain Lion the Home/Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and hit the Enter button - 10.7: Un-hide the User Library folder.

Encoder Speed with NI 9215 module and cDAQ-9172

I've a NI cDAQ-9172 with the NI9215 analog input module, and I want to estimate the speed with an optical encoder (OMRON E6A2-CW3C). My approach was, making a comparison with a point in the midle of the high of the signal, ie 4V, making this way a perfect square signal with 1of high. After that I use the Tone Measurements and the Timing and Transition Measurements modules to calculate the frequency of the wave form, and this way I'm able to calculate the RPM speed.
The problem with this solution, is that even with the engine at a constant speed of 746RPM, measured with a stroboscope, Labview give me a high variable values between 730RPM to 760RPM, and I can't solve this problem because I really need an accurate measurement.
Should I buy for example the NI 9401 module to make this measurement? If so, does any one knows how to build a VI to get the encoder speed?
In attach I send the VI that I'm using to calculate the speed.
Thank you for help.
Attachments:
Encoder Speed.vi ‏112 KB

Hi,
The best way to measure a speed through a quadrature encoder is to use the counters that are inside the cDAQ chassis.
With the 9172 chassis, you need a digital I/O module (9401) in order to access the counters.
With the new generation of chassis (9178), you don't need the 9401 because you can connect your encoder signals to the BNC.
Best regards,
Thomas B. | CLAD
National Instruments France
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I have been fighting a losing battle with iDVD. What is the latest version and how can I obtain it?

I have been fighting a losing battle with my copy of iDVD. What is the latest version and how do I obtain it?

The latest and last version of iDVD is 7.1.2. iDVD 7 is included in the boxed disc of iLife 08, 08 and 11. You can get copies of them at Amazon.com.
The History of iLife
Version
Intro
Cost
OS
IPhoto
iWeb
iMovie
iDVD
iTunes
Garageband
iLife
01/03/03
$49
10.1
2
3
3
3
iLife 04
01/06/04
$49
10.2.6
4
4
4
4.2
1
iLife 05
01/11/05
$49
10.3.4
5
HD 5
5
4.71
2
iLife 06
01/10/06
$79
10.4.3
6
1
HD 6
6
6.0.2
3
iLife 08
08/07/07
$79
10.4.9
7.0
2.0
7.0
7.0
4.0
iLife 09
01/06/09
$79
10.5.6
8.0
3.0
8.0
7.0.3
5.0
iLife 11
10/20/10
$49
10.6.3
9.0
3.02
9.0
7.1
6.0
No matter what iLife version you purchase you'll need to run the latest updater which is availalbe from the Apple Downloads webpage.
OT

I have a problem with IDVD when I have completed a movie and set it up with menus etc I cannot operate the burn button so I cannot make a DVD.

I have a problem with IDVD when I have completed a movie and set it up with menus etc I cannot operate the burn button so I cannot make a DVD.

Hi
Can You
Go up to File Menu in iDVD - and here down to
Save as a DiskImage
If this works - You can burn Your DVD in another way via Disk Util tool
Yours Bengt W

Exporting from FCP to iDVD to properly display on 16:9 and 4:3 TV

For some reason I cannot get my DVD (made in iDVD 5) to display right on 16:9 and 4:3 TV. Here is my info:
1. My clip is 720x480, anamorphic checked (fills up the canvas beautifully)
2. I export to QT movie DV NTSC 48 kHz (or DV NTSC 48 kHz anamorphic, this doesn't make any difference in the final result)
3. To display it as a widescreen in iDVD 5 I open the clip in QT Pro and change "Visual Settings" in "Movie Properties" to scaled size 853x480, than save. (That's a fix from one of the Apple articles)
3. When I import it to iDVD it displays it as "widescreen preview" and burns it as such
4. DVD comes out as widescreen, but when played on 4:3 TV doesn't display  letterboxed.
*5. How do I make it to play widescreen on 16:9 and letterboxed on 4:3?*
    - I tried to use the Anamorphicizer with many different clip-exporting options, but it never worked.
    - I also tried to use a couple of programs to change the iDVD's .ISO file, but I am not a programmer and couldn't get those programs do work for me.
    - I ordered iLife '08. Is there a fix in the new iDVD version?
    - I could use the Studio Pro, but I don't have a time to fix all those buttons, connect them to chapters, etc...  Seems like the developers should have done it for us to work as simple as iDVD.
I would appreciate any reasonable solution.

I am a five year final cut/idvd user and I am completely bewildered why my exported quicktime 720/480 movie with chapters and not widescreen defaults to widescreen in IDVD. I have tried everything, 5 days of tech help, and even brought it to the store where they couldn't figure it out..I don't know how to use studio pro but toast burns it fine 4:3 and doesn't stretch it like widescreen. Is this a bug or problen in ilife08?? I am so sad if I cant use IDVD...it has beem such a great program///how difficult is studio pro? AMy suggestions? I am working on a mACBOOK PRO...AND NEWEST FINAL CUT

Encoder data and speed calculation with PXI 4472B card

Hi,
I want to collected time, vibration, encoder and speed signal in one file. I am trying to develop NI by using PXI 4472B and LabView 8.6. Everything is okay but getting only one rpm for speed data. I want to collect continuous data for 15 sec (constant speed) and 15 sec (ramp up speed).
q1. Would you please look into the VI and provide me some suggestions to get continuous speed and all data?
q2. What is the best way (programming etc.) to collect constant speed (100 rpm) and ramp up speed (50-1000rpm) data in two files automatically from one test? Any help?!
New Labview user.
Regards, Niaz
Attachments:
Encoder data Collector.vi ‏156 KB

Hi Chris,
Thank you for your warm response. Here is the status:
1. I already tried to use 'Analog Tacho processing' sub-pallette. See the attachment, but the RPM value is not the same/similar with the actual known RPM. However, 'Timing trans..' sub-pallette shows similar speed in terms of frequency to actual known RPM. Do frequency and speed profile value in NI should not be the same/very close? Encoder disk is of 60 pulse/rev and using laser TTL to get the pulses, signal input is into 4472B. Does it neet to extra processing to count the edges of rising?
2. I prefer ASCII or TEXT. Experiment is for one ramp-up (50-1000rpm) and one steady (100 rpm) for 15 sec each. I will use this data in Matlab. I am looking for help in programming so that single experiment will divide into two separate files of ramp-up and steady speed. File will consists of time, vibration, encoder value (0,1...) and speed.
Kind regards, Niaz
Attachments:
Data Collector-4NI.vi ‏190 KB

How do you export your movie using idvd? I keep getting error messages and notices that I do not have enough space to transfer to a dvd.

How do you export your movie using idvd? I keep getting error messages and notices that I do not have enough space to transfer to a dvd.

Can you give us the steps to re-create the problem, and the exact wording of the error message you are getting please.

How to fill the whole screen of my iMac with the photos included in an iDVD project. (iDVD v. 7.1.2)

How to fill the whole screen of my iMac with the photos I included in an iDVD project. (iDVD v. 7.1.2). I mean, during playing the burned dvd.
When I do "Enter Full Screen", the slide show fills the screen but the photo itself remains in the middle with a wide black border filling the rest.
Any cure for this ?

Hi
In iDVD Preferences - Turn off - TV-Safe area - and the Photos will fill the full area with just letterboxing or pillars as max.
Then "Save as a DiskImage" and test this and see if this plays better - before burning DVDs that's not as You want them.
Bengt W

Premiere Pro CS5.5 encoding speed

Hi,
I noticed that the time for encoding a video in Premiere with GPU acceleration enabled doesn't change according to the shaders clock speed. The time is exactly the same with or without GPU overclocking, is this normal?
Another question: the encoding speed is faster during the first 50% of the process, then decreases a bit. Is this related to some option in the program or it's normal?
Thanks in advance.
Luis

I've made an encoding test where we can see that GPU participates more actively in the first half of the encoding process and therefore I don't understand why you said "The GPU is not involved in encoding, that is a purely CPU matter". From 50% until the end of the process CPU takes the lead.
Luis

Encoding Speed with Media Encoder Issue?

I have a 5 hour and 36 minute timeline in Premiere Pro CS5 which is composed of mixed assets- some at 29.97, some at 30 FPS, etc. The timeline is exported to Media Encoder and set for Match Source Attributes Highest Quality (Quality 5.0, VBR 2 pass, min 3.00, target 6.00, Max 7.00 MBPS). NTSC 720 X 480 (0.9091), 29.97 FPS, PCM 48hz, 16 BIT stereo. Format is MPEG2 DVD.
Estimated file size is 18138 MB. The file takes approximately 36 hours to encode. Is this normal?
Premiere Pro CS5
Media Encoder CS5
Windows 7 64 BIT
2.4 GHZ
Intel Quad 4
700 GB free space on hard drive
6 GB RAM

Is this normal?
Probably yes. Aside from the normal conversion with 2 pass VBR, which even under ideal conditions could require up to 3 times the duration of the footage (in your case this makes about 15 hours), you are causing additional operations to conform the frame rates on the Premiere level of things. Also, since this is handled as a Dynamic Link process, you may be a bit short on RAM, which may slow down things further. And then of course the usual with disk speed and file I/O etc.. So it more or less sounds normal, but you should not let the initial rough guesstimates discourage you. Many times these values will get much lower after a while of transcoding when the encoder has a much clearer picture and statistical data about how long it actualyl takes to encode so and so many frames...
Mylenium

What factors affect encoding speed the most?

Hello everyone,
I am actually quite happy with the encoding speed to DVD formats. I was under the impression that encoding was "real-time". Encoding a 1 hour long PAL 48kHz capture from VHS to DVD only took ~30m.
I opened the task manager and noticed that both cores of my Athlon X2 5400 were running flat out during this process. Thus I take it encoding can utilise multiple cores.
My questions are:
If I upgrade to a Quad core CPU what performance increase would I see with the encoding example above? 15m?
What influence does hyperthreading have -if any?
Do you expect that PE8 will support nVidia CUDA at some stage? I notice that the latest Roxio software does.
Will the encoding slow down dramatically when I start working with HD content?
Do any of the Matrox hardware encoders work with PE8? They only seem to support Premiere CS4
I have SATA-II RAID 0, 2GB RAM, AMD Athlon X2 5400+ and XP SP3
Justin.

Export and Rendering speed can also be affected by one's I/O sub-system, i.e. your HDD's (Hard Disk Drives), their speed, amount of free space, the controller type and how you have these HDD's allocated.
With the exception of AVCHD, which Steve mentions, having separate physical HDD's (not partitions - logical drives), will speed things up greatly, as all operations on the computer, access to the OS, the program, the media files and then outputting from the program, will be spread over several HDD's. If you only have one physical HDD, everything has to flow through one "pipeline," and this adds significant time to the processes. Having partitions will slow things down even more, and can even cause hangs, because the OS "thinks" that it has multiple HDD's to use, but only has one. It cannot understand what's taking so long, and grows impatient.
With AVCHD, the CPU is used much more than even the I/O sub-system, and becomes the most important link in the chain.
Good luck, and let us know all about your HDD's, their number, size, speed, controller type, say SATA II, and how you have these allocated.
Hunt

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