M4V Video files suddenly not working in itunes

I have a couple hundred m4v video files (all created with handbrake) that have been working fine on itunes for ages. Did the upgrades last week for the latest itunes and ios 4.3 on my iphone 3GS and ipad 1 and airplay for the videos was all working fine. Suddenly this evening its all stopped. Within itunes I can't double click or right click play any of the files. Across airplay the devices bring up the movie format not supported error. Video files I have bought from Apple are still working fine though so I don't believe it to be a library/network issue. Has anyone experienced the same thing?
I can't find anything after doing an internet search to help, apart from the fact that the files may be corrupted, but could they really all get corrupted instantly?
Any help would be appreciated.
Thanks!

Just to clean this unresolved issue up, seemingly the problem disappeared after upgrading to iTunes 9.2.1 (5).
Thanks!

Similar Messages

  • Sync video files (MOV) not sourced from iTunes

    Hi, I would appreciate any advice on how to Sync video files (MOV) not sourced from iTunes, to my iPad. The files are stored in my iPhoto library on iMac.Thanks.

    OK, solution found. I changed the iPad Photos Sync setting to include videos. Thank you.

  • DVI video out suddenly not working.

    That's basically it. I have a 23-inch Cinema HD Display at home and at the the office. Suddenly the video out is not working with either of them. The displays control panel lists the external display, so the system is detecting the connected display.
    There is nothing wrong with the displays. I connected an old PowerBook and they light up fine. With my MBP, the power light lights, but nothing is displayed on the Screen.

    there's a somewhat similar thread "external monitor stopped working" with no answers
    my 17" Studio display works as 2nd mon on other computers
    my dvi out does work with a vga monitor and adapter, of course :))
    i'm using the dvi to adc adapter -- could this be involved somehow?
    my laptop display goes blue when i plug in the external monitor as it should, but the 2nd monitor never wakes up, turns on, etc.

  • Can't read m4v video files since I've installed Itunes 10.4 update.

    Hello,
    I've bought video files on Itunes Store which were working perfectly so far on my macbook pro.
    Since I've installed Itunes 10.4, when I launch m4v files, I just have a black non active screen, no message, nothing else.
    Other video or audio files can be read.
    I'm using mac OS X 10.6 so it's supposed to work.
    My other mac (Imac) which is using Itunes 10.3 can read these m4v files without any problem.
    So I tried to get back to Itunes 10.3 (for my macbook pro) but I can't cause the Library has now been created with a more recent version of Itunes.
    Please tell me what should I do...

    Hello,
    I have the exact same problem... anyone knows what to do?

  • Online audio and video files are not working

    i got a plugin for shockwave flash(adobe flash player) i thought it is the latest version so i downloaded it and installed it. Before installing the new flash player i was able hear song online and can watch videos but now both audio and videos are not working.

    thanx for your advise but i got to hav one more problem and that is...i have downloaded the new version setup of firefox but after extracting it stops working and the installation process ends automatically...so please help.
    the file that i downloaded had the "Firefox Setup Stub 23.0.1"

  • I mean to say no video file is not working even the online youtube video is not opening i can see any video on my laptop macbook pro

    intel HD Graphics 3000 Driver software plz send

    This forum does not work that way
    Read https://discussions.apple.com/message/16112647#16112647
    Allan

  • .jar file suddenly not working

    I have some minimal experience working with .jar files, but I am baffled here.
    Recently, the jar file for one of my programs stopped working. I had just made a change to my main class, so i repackaged the jar. Now it says "Can't find main class" when I try to run it. It will only work if I add the line
    Class-Path: . (there is a period there)
    to my manifest.
    This would be fine, but I want to use exe4j to make it into a Windows executable. exe4j must do something where it does not honor the mainifest settings, because the executable gives out a "can't find main class" error no matter what.
    What has happened? It is only an issue with this program, i have repackaged several others to test, and they work without the "Class-Path" workaround. I'm pretty sure that it's not something in the nature of the program itself, because it worked eariler, and my only change was a small one (the text of a few JLabels).
    I have made sure that my main class is in the root of my jar file, and I have the Main-Class attribute correctly set in my manifest. The program runs fine outside the jar, but displays this odd behavior only when "jarred".
    Any help would be greatly appreciated.

    also, it's only the one class that's affected.
    I tried setting the Main-Class to other classes in the jar, and that worked fine. When I tried to make a workaround, making one of the other classes' main call the one I wanted, i got a "fatal exception" error. I'm pretty sure it still couldn't find the file.

  • AAC file conversion not working in iTunes 11.1.5.5

    Hi, I have updated to the latest version of iTunes [11.1.5.5] and now when I try to convert a wav file to aac it claims to have converted the files but it remains as a wav file. Any body have any ideas for a fix?

    it claims to have converted the files but it remains as a wav file.
    Make sure you are looking at the newly created AAC file.  The orginal WAV will still be there, but it is not the one you want.

  • Multiperson video chat suddenly not working

    Hi,
    So I've been using multiperson chat for the past couple of weeks and have had no problem. Tonight, it doesn't seem to be working. The green video icon that is normally stacked is now just one video. When I checked Connection Doctor is says that I have a "slow network." I'm using the same wireless network that I used all those other times. Is it just being especially slow tonight? Will this problem correct itself? Is there anyway I can fix this now?
    Thanks!

    First have you set the Quicktime streaming setting, goto sys prefs/quicktime/streaming/streaming speed, set to 1.5mbps
    In ichats prefs click on video and change bandwidth limit to 500.
    Restart iChat.
    If no change try bandwidth at 200.

  • I had all of my video files that I work on in iMovie saved to an external hard drive exclusively to save space on my Macbook.  I had just finalized a project, went to work on another one and files couldn't be found, were not deleted how do I find them?

    I had all of my video files that I work on in iMovie saved to an external hard drive exclusively to save space on my Macbook.  The other day I had just finalized a project and went to work on another one and when I opened the project I could see what should have been there, but scrolling over the entire clip I would only see black and that the file was missing.  I did not drag anything on the hard drive to the trash or move anything.  How can I get those files?  These are videos of my kids and I am devastated and willing to try anything!

    Control click does not work - no option to find files.  I have no idea what to do.  When I look at the usage of the external drive the space is being used, but I cannot find the files.  I am going to try MacKeeper's Undelete and see if I can make any progress with it. 

  • Why does Acrobat suddenly not work on my Mac (won't open pdf files from a web page), yet I can open them from my iPhone? Everything worked fine yesteray.

    Hello:
    I have a Mac running OS 10.8.5 and I use Acrobat Pro and Acrobat Reader. Today for some reason, any time I try and access a pdf file from a web page, it won't open. I get a blank window. PDF files already on my computer open fine and I can create PDF files from Word docs, but I can't download or view any pdf file from any web page. Strangely, PDF files on web pages open just fine on my iPhone.
    I checked that both my copy of Acrobat Pro and Acrobat Reader are up-to-date. They are.
    I checked that my copy of Firefox is up-to-date. It is. And nothing changed with Firefox within the last 24 hours.
    I am a humble computer end-user. I am baffled as to why this would suddenly not work. I have not changed any settings, etc. Any help or suggestions would be greatly appreciated.

    Thank you.
    I checked your instructions you sent and as far as I can tell all of my settings, etc for Firefox (plugin updates and preferences) are correct but I am having the same problem.
    However, everything works in Safari. I don't have time to attempt to diagnose why Firefox no longer works. I will just switch to Safari.
    Many thanks.
    Charles
    Charles Deister
    (503) 949-5762
    [email protected]<applewebdata://81CB4171-226F-49DF-BD59-A38A7360B3FB/[email protected]>
            PO Box 5032
         Salem, OR 97304
    http://www.pilotstrat.com<http://www.pilotstrat.com/>
    This transmission (including any attachments) may contain confidential information, privileged material, or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful.

  • ITunes on my iPhone 5 is suddenly not working.

    iTunes on my iPhone 5 is suddenly not working. Updated to IOS8.0 (not running 8.0.1) a few days go but was fine up until today. Now, when attempting to play a list of songs (artist, playlist or album) it rapidly shuffles through all of them without playing and then it displays a red square next to songs and won't play them at all. It seems to sync with my MBP but then new playlists I've created don't appear on the iPhone even though iTunes on the MBP has them appearing when I click the "on my iPhone tab. Tried the obvious quit and restart approach. No effect. Does anyone have any ideas?

    It's not a hardware problem. The same exact thing just happened to me. My husband reset all settings, not erase all content and settings, after the phone started back up, everything worked like normal again. You just have to redo your settings.
    General>Reset>Reset all settings
    Hope this helps you!

  • Video previews not working in iTunes

    Hi all,
    I've seen this posted a few different ways without any resolution to the problem so I thought I would give it a shot.
    Video previews are not working properly for me. When in the iTunes Store and I click on a "View Trailer" for a movie or preview for a music video, a pop-up window appears in iTunes with a white background. The audio will kick in but the video never starts. I am using iTunes 9.2 (61).
    Has anyone uncovered a solution to this?
    Thanks!

    Just to clean this unresolved issue up, seemingly the problem disappeared after upgrading to iTunes 9.2.1 (5).
    Thanks!

  • IChat video suddenly not working

    Can anyone help? I'm using iChat 4.0.8 on an almost brand new MacBook Pro. The video worked perfectly fine with my parents, and then suddenly stopped working when we moved. We're still using a wireless connection with an airport extreme. Funny thing is, the video works fine with my husband's MacBook Pro, and my brother who is in California. Why would it suddenly not work with my parents when computers haven't changed?
    please help!

    Did the Modem change ?
    10:49 PM Monday; October 19, 2009
    Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

  • I had to restore my computer. After reinstalling itunes and sincronizing with my ipod, the music files were not organized in itunes as in the ipod: some songs were missing, some albums has no cover? Why is the sincronization not working properly?

    I had to restore my computer. After reinstalling itunes and sincronizing with my ipod, the music files were not organized in itunes as in the ipod: some songs were missing, some albums has no cover? Why is the sincronization not working properly?

    See Recover your iTunes library from your iPod or iOS device.
    tt2

Maybe you are looking for

  • TS3899 Cannot send email from my iphone using my comcast email account

    I am able to receive mail from my Comcast mailbox on my iphone, but every time I try to send, it's stuck in the Outbox.  I have tried deleting the email account and re-installing it on the iphone with no luck.  What am I doing wrong???

  • Presentation variable is not supported in "SQL Issued"

    hi, there is a presentation variable called @{ps_var} from a prompt and I have written a custom sql and typed in "SQL Issued" !http://img31.imageshack.us/img31/8673/customsql.jpg! I found that the presentation variable is not supported in "SQL Issued

  • Photo doesn't fit slideshow frame

    Is there a way within iPhoto '08 to make a photo fit properly on the screen when creating a slideshow? I have a series of photos and "full frame" photos fit fine, but photos shot vertically are cut off at the top of the screen.

  • Service Objects

    We are currently in the process of rearchitecting our software systems around Forte. Could anyone tell me what experiences they have had with building a system using Forte Service objects in a multi-tiered system? It seems to us that these are intend

  • Ichat 5.0 videochat delay problem

    Has anyone been experiencing a delay or lag time with videochatting in Snow Leopard? It never manifests itself at first, but after about 4-5 minutes of videochatting, all communication begins to run on about a 3-5 second delay. Essentially, videochat