Ejects video DVDs but reads data DVDs and CDs

Hi all, I have a 2010 Mac mini which is still on snow leopard.
As soon as I put any DVD video in the drive spins up, makes a bit of noise, then tries again and finally just spits the thing out.
All CDs and data DVDs work first time everytime. I've read a number of other questions to try repairing drive permissions and reset PRAM which I have tried but no joy. The indication I seem to be getting is that if these things don't help it's a hardware issue but I thought that would be odd since data DVDs work.
Grateful for any help. Cheers.

It's possible it doesn't like DUAL LAYER DVDs. Pressed, commercial DVDs are all dual layer, and yet your data DVDs are probably single layer. Maybe it's that?
(I believe there were some early Superdrives that weren't dual-layer-DVD-capable, but don't quote me on that. Maybe your Superdrive is just on the way out, with a weak laser!!)

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IDVD problem burning and multiplexing - gets stuck but ejects the DVD and the DVD doesn't play

I am having trouble burning DVDs. Everything seems to be working fine during the iDVD project creation. I can watch the movie and select scenes within iDVD. Then, when I go to burn the DVD, it gets stuck at the burning/multiplexing stage - the wheel just keeps spinning and says there is about a minute left. Yet it ejects the DVD and the DVD won't play when inserted into a DVD player. It will show the intro and the scene selection pages but when you click on one of the scenes, it gets stuck and doesn't play. I have already uninstalled and reinstalled iDVD. The problem persists. It seems like the burner itself is the problem. What can I do to fix it? I have Mac OS X Version 10.6.8 with a 2.8 GHzintel Core 2 Duo and iDVD version 7.0.4.

Hi
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
Yours Bengt W

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mataydood, Welcome to the discussion area!
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(103905)

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Hi Geoff,
Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
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10.5.x/10.6.x/10.7.x instructions...
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Is that Interface dragged to the top of Network>Show:>Network Port Configurations.
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Drive can read DVDs and CDs but WON'T Right

Hi can anyone help with this.
When I put a blank CD or DVD in the drive I get the "This Disc Cannot Be Used Because It Is Not Recognized" message.
But the drive does read discs well.
iDVD has not been able to burn a DVD for a while and in the last few days I can't even burn a CD.
I thought It was the drive, so I replaced it and got the same message!!
So is this a software problem?
And can anyone give me a clue to fixing it?
Thanks in advance?

LARRY I have a similar problem. Here is the Info. My son just got back from South Africa with a lot of
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Hello
My Powerbook G4 550 MHz with Matsitha CD-RW CW 8121 read Movie DVD without problems. When I insert other DVDs or CDs they don´t apear on the desktop after 1 minute after trying to read they where thrown out. I can´t start the Powerbook from Installation CD.
I tried to install the new firmware but there is ne new firmware on it.
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Wilkommen zu Apple Discussions!
Ich spreche ein bischen Deutsch, aber English war besser fur mich.
http://forums.macosxhints.com/archive/index.php/t-27950.html
It seems after reading the above, you have a drive that doesn't support DVD+ media, but does support DVD- media.
There is a distinct difference. And Dual Layer media didn't come to be supported until much later.
CD-RW means only able to read CDs, and write to CD-R and CD-RW media.
DVD-ROM drives exist which will only read DVD-R, DVD-ROM, CD-R preburnt, and CD-ROMs. They can't burn any CD meda.
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Superdrive indicates the variety of DVD drives which can write to the variety of DVD formats well as CD formats. Depending on the age of the Superdrive it may support DVD-R (almost all support at least this), DVD-RW, DVD+R, DVD+R DL, DVD+RW, and a few support DVD-R DL.
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Did you receive any error messages?
I have searched for some tips on the Microsoft website and found this both links:
How to Troubleshoot CD-ROM or DVD-ROM Read Issues
http://support.microsoft.com/kb/218617/EN-US/
How to Troubleshoot Issues with Reading CD, CD-R, CD-RW, and DVD Discs
http://support.microsoft.com/kb/321641/EN-US/
Maybe it helps.
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Mac Mini yes
Mac Mini Server no
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[Solved] DVDs and CDs only work the first time I put them in

First lets get this straight before it is asked later on down the line. I am a 6 year Linux user and 2 year Arch user. I am currently using xfce4 and thunar as my file manager with thunar-volman installed. This has been a problem for the past year or so. I use my laptop most of the time (also Arch 64 and working like a dream) so I only try fixing it every so often to no avail.
I can put in a CD or a DVD and play them with VLC. Here's the catch: after I eject the CD/DVD and put in another one I can't play it or find it. The first time I put one in I even get an icon on the desktop. I don't think it's reasonable to have to reboot everytime I want to play another DVD (time wasted by constant rebooting is one of the very long list of reasons I don't use Microshaft products). I'm stumped, I can't be the only one, but my forum searches yield no treasures.
Last edited by astrozombie (2010-02-03 01:00:15)

Thanks for trying, however, I posted what I use for a reason. I am using VLC, and I am a minimalist so I don't want a bunch of programs for doing the exact same thing. VLC is the only player for Linux that plays MTS files out of the box, so I'm not interested in switching or adding another.
Anyways, it's irrelevant because as I said before, thunar mounts it correctly the first time I put in a DVD or CD and displays an icon on the desktop for the disk. Therefore the problem is most likely hal related, since this began about the time we switched to hotplugging, and besides this I love hotplugging so I am also not interested in disabling that (who know what problems I'll introduce for my MAC keyboard and webcam if I do that). Yes I've read the hal and dbus wikis.
I can even get a USB CD writer to work with xfburn, however it's a relic and I think that's a sorry work around when I have internal drives that, in theory, work just fine. I wonder if it has anything to do with the drives being IDE when I used the SATA install option on the install disk (I did a fresh install last week) since my hard drives are SATA.

Ejects video DVDs but reads data DVDs and CDs

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