Q: Every time I try to Render it says - An error occurred while creating the media file - the reason could not be determined

Answer: When Movie Studio or Vegas Pro stops processing in the middle of rendering a new video, and gives you an error message like this: "An error occurred while creating the media file - the reason could not be determined", there are a couple of reasons why this has happened.

Here is my check list

1. Re-boot your Computer !

If you have been doing a lot of editing over many hours, then it is often a good idea to SAVE As and then do a RE-BOOT of your computer before you attempt to Render a Video. This will clean out your memory and give you a clean slate.

2. Try a Clean Re-Boot of your Computer

Try a clean boot to start Windows with a minimal set of startup programs. Here is a Windows article on how to perform a clean boot: https://support.microsoft.com/en-us/kb/929135

3. Reset the software back to default values

Sometimes mysterious alien artefacts and corrupt files can build up inside the temporary files cache and cause bizarre behaviour. Resetting the program and deleting the temporary files cache, can often fix weird behaviour and will make your program look like it was just freshly installed. It is safe to do and will not delete any of your saved projects, if you have been remembering to always do regular saves while working on a project.

IMPORTANT - Please read this before attempting a program reset!

If the program crashed while editing your project and you have not been doing regular saves, you can end up losing all your work! However Movie Studio and Vegas Pro may have done an auto-save of your project file, which can be recovered and re-saved if you're lucky. Auto-saved project files are saved to the Temporary Files Cache, so it is important to first inspect this folder before your do a full program reset and delete of the cache.

The folder address will be different for everyone, but normally looks something like either one of these:
C:\Users\UserName\AppData\Local\VEGAS Pro\14.0\
C:\Users\UserName\AppData\Local\Movie Studio Platinum\13.0\

To find out where the temporary files cache is located on your computer, open Movie Studio or Vegas Pro and go to Options/Preferences/General. Highlight and copy the Temporary Files Folder location using CTRL + C and then open up a Windows Explorer window in Documents. In the address bar located at top of window, press CTRL + V to paste the address.

You are now in the temporary files folder/cache. If any projects were auto-saved, they will normally look something like 00000000.restored.veg. Copy every single .veg or .vf file you can find and then paste them back into a safe folder location on your computer, like Documents/Vegas Projects. Now open each one up in Movie Studio or Vegas Pro and see if you have been lucky enough to find a crashed or missing project. If you want to keep it, make sure to re-save immediately with a new project file name that makes sense to you.

Once you have retrieved anything important from the temporary files cache, you can now perform a full program reset by doing this following:

Hold down the CTRL and SHIFT keys on your keyboard, and at the same time double click the program icon on your desktop to boot the program.

Select Delete Cache and Yes 

The cache is now cleaned. After a reset, you will have to reconfigure your favourite settings in Options/Preferences and the Project Properties window!

4. Remove unused Media

Remove unused media to help free up resources. You can purge unused media from your Project Media Window in Vegas and Movie Studio. To do this, go to the Project Media tab and you will see a button that looks like a lightning bolt. Clicking on that will remove any unused media from your project and help to free up system resources. Movie Studio 13 Platinum has this feature in Tools -> Clean Project Media.

5. Try working on your project in pieces

Try working on your project in pieces. For example if your timeline is 30 minutes long, save three ten minute sections into three project files using File -> Save As. Edit each section separately, render, and re-import into a new master project to stitch them together into a final audio and video stream.

6. Try replacing the media in your project

If it always hangs at the same frame or place, try deleting the files at that point in your timeline and then replace those with newly transcoded or recaptured clips.

7. Try to avoid any customisation with your rendering templates

If you are using custom settings for rendering, try rendering without any customization applied. If that works, then you can guess that your custom settings are not compatible with your rendering format.

8. File locations

If you're working in an environment where files are scattered across multiple drives, try placing your media on your local disk drive.

9. Virus Protection program is too aggressive

Try adding the .exe file for the program to the exception list for any anti-virus software you are running on the system.

10. Do you have Apple Quicktime installed ?

You must have the latest version of Apple Quicktime installed if working with .mp4 style formats. There really is no choice with this, please have Quicktime installed at all times for Vegas to work correctly.

11. OLDER VERSIONS OF MOVIE STUDIO HAD PROBLEMS - Which version of Vegas Pro or Movie Studio are you using ?

Older versions of Vegas Movie Studio were susceptible to a Low Memory Error in particular situations. Specifically, Vegas can have a problem accessing enough RAM (memory) for users who had Movie Studio HD Platinum 32bit version installed on Windows 64bit Operating System.

Vegas Movie Studio HD Platinum 11 and all older versions of Movie Studio are only 32bit programs, which means they can only use a Maximum of 4GBs of RAM, even on a 64bit Computer that may a much higher amount of RAM installed. Not only is there a 4GB limit, 64bit users could also experience a glitch which limited there available access to RAM, to just a mere 2GBs. Movie Studio Platinum 12 and 13 now come with a 64bit and 32bit version of the program.

In a project with 720p or 1080p HD Video, this results in Vegas just freezing up. Fortunately this problem for 64bit users was fixed during one of the free Build Updates for Vegas Movie Studio HD Platinum 11 - Build 283.

12. Check for Free Updates and New Build Versions of your Program

Always make sure you are using the latest Build Version of the program you are using. Bugs and updates are continually been fixed and added to the programs. Many times a simple program update may fix your problem.

Please note that in 2016 Sony has sold all their Vegas software to Magix software. If you try an use the function search for updates in any Sony programs now, it will no longer work. If you need to re-download an older Sony program you bought years ago, you can do so from a special Sony Archive that has been left in place.

Updates to all programs ever made by Sony are located here.

Any Vegas programs released during or after 2016, will now be Magix versions and can be re-downloaded directly from your Magix Account.

13. Did you add a tonne of Video Fx ?

Sometimes if you add too many Video FX into a chain, it can cause an immediate crash.

First step to diagnose this problem is to temporarily TURN OFF all the Video Fx and then try to render again. If it works, then you know one of the Video Fx is causing the problem. Try next to turn ON one Video Fx at a time and do more test renders until you can narrow down the problem child.

14. Are you using the New Blue Fx Titler Pro ?

Older versions of the Titler Pro were very buggy in Vegas Pro and could cause Vegas Pro to freeze or crash. Check updates for the Titler Pro and then do another render.

15. Are you using GPU Acceleration ?

Try turning OFF GPU Acceleartion in the Vegas Pro or Movie Studio Platinum Preferences, which are found in the Video tab.
Go to Options - Preferences - Video

16. How much RAM do you have installed ?

Version 11 and older versions of Vegas Movie Studio can only access a maximum of 4GBs of Memory (RAM). Even though this is the case, please make sure that you DO actually have 4GBs of RAM installed. I have seen time and time again some people on Laptops only having 2GBs of RAM installed. This is just way too low for any Video Editing program to work with properly. Once you throw a couple of HD Video files into Vegas, it's going to completely freak out.

RAM is cheap, so make sure you have the full 4GBs installled.

17. What type of Video are you trying to Render/Create ?

If you are attempting to Render a 1080p Video from your project with too HIGH a bit rate (on 32bit versions of Vegas Movie Studio) it will crash older and slower computers with low RAM capacity and/or low powered CPUs.

A solution to get around this problem is obviously to lower the Bit Rate you are Rendering to. Anything under 10MBps should be more than enough to create a nice looking video. Trying to render to 20, 30, 40MBps is just silly.

Another solution for people on low powered machines is to switch to 720p settings instead.

18. What type of CPU do you have ?

To have a great experience with Vegas Movie Studio when editing and creating full 1080p HD Video projects, you must have a modern 4x Core CPU (Central Processing Unit) as the "Brain" of your computer. Older Duo Core CPUs just can't handle processing HD Video files, and can be a reason for Rendering to crash and produce errors.

19. Which format are you rendering to ?

Avoid Windows Media Video .wmv if you don't have much RAM and very low CPU power, when working with 1080p Video. Windows Media Media will suck up ALL your CPU resources while rendering - it's just how the codec behaves.

Sony AVC .mp4 or Mainconcept AVC .mp4 are the best formats to render to, on older/slower computers.

If rendering any AVC templates, make sure to use CPU only encoding.

20. What is the condition of your Hard Drive ?

HD Video files are very large, so you need plenty of Hard Disc space for them to be written to. If your Hard Drive is almost full and never been de-fragmented, it can slow up rendering times and in worse case scenarios create a crash.

21. If none of the above solutions work, you need to pull out the big guns and perform a clean uninstall and reinstall of all your sony programs

Please read one of the following articles for in-depth instructions on what to do:

How to Clean Uninstall and Reinstall Vegas Pro/Movie Studio for Windows 7

How to Clean Uninstall and Reinstall Vegas Pro/Movie Studio for Windows 8/8.1

How to Clean Uninstall and Reinstall Vegas Pro/Movie Studio for Windows 10


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  • This commment is unpublished.
    Eustace · 07:13 20/03/2014
    I did all of this and it still saying the same thing. HELP!!!!
    • This commment is unpublished.
      • Moderator
      · 09:28 20/03/2014
      The Vegas Cache may be corrupted, which can cause errors. You can reset the program to factory defaults by doing thew following:
      Turn Movie Studio/Vegas Off.
      Hold down CONTROL and SHIFT keys at the same time AND ALSO AT THE SAME TIME double click program icon to Boot program.
      Window will pop up.
      Select Delete Cache and Yes.
      This will restore program to Factory Default Settings.

      Which exact version of Movie Studio/Vegas pro are you using ?
      Which exact Render As profile are you trying to use ?
      What type of video did you import into the project ?
  • This commment is unpublished.
    gyan · 06:02 06/01/2014
    i am having the error problem i am so con fused with vegas problems
    • This commment is unpublished.
      GYAN · 06:25 06/01/2014
      tks alot i restart and clear programme cache and i just start rendering i hope it goes through to the end i will give a feed back
      • This commment is unpublished.
        • Moderator
        · 08:46 06/01/2014
        Hi Gyan
        You have sent me two messages close together.
        Did you fix your problem ?
  • This commment is unpublished.
    Ozan · 14:51 05/01/2014
    I have problem when I add many videos from different folder to create movie in vegas pro,
    When the rendering reach certain video, it always stop responding. I tried again, when the rendering reach the same video, it stops responding again.
    what's the problem? I'm sick of it... help me
    • This commment is unpublished.
      • Moderator
      · 15:20 05/01/2014
      Hi Ozan
      Before I answer your question, can you please re-post your message. You have added it to the very bottom of someone else's thread, which leaves no room for any further replies.
      Copy your original message and post it in the BOX underneath the end of the article - right at the TOP !
      Then I can answer immediately.
      • This commment is unpublished.
        Ozan · 15:28 05/01/2014
        When the rendering reach certain video, it always stop responding. I tried again, when the rendering reach the same video, it stops responding again.
        what's the problem?

        But just a couple seconds ago i solved my problem by re-add the video that made the rendering crash, but It took time and it made me need to reedit the video.

        Maybe if you have better solution?
        Thanks a lot
        • This commment is unpublished.
          • Moderator
          · 15:46 05/01/2014
          Hi Ozan
          When I come across a problem video, the first thing I do is [B]isolate it[/B].
          I would create a new test project and drop [B]only[/B] that one video into it and go straight to rendering to see what happens. If it bombs out during the test, then that usually means the Video Codec that it is using is not compatible with Vegas. I would then convert this video into a different codec/format using a Video Converter and then drop it back into my project.
          The other thing to look out for, is [B]Video Fx[/B].
          Sometimes a particular Video Fx can cause a problem during rendering - especially if it is combined with other Fx in a long chain.
          These problems are not black and white, and sometimes are very hard to work out.
  • This commment is unpublished.
    martin michaud · 11:26 19/12/2013
    it is so frustrating when working on a project and the sony vagas studio platinum 10.0.. programme is freezing all the time, need help
    • This commment is unpublished.
      • Moderator
      · 13:27 19/12/2013
      What type of computer are you using ? Is it a laptop or desktop computer ?
      Is it new or old ? Fast or slow ?
      Do you know if your computer is 32bit or 64 bit ?
      If you have a 64 bit computer, then I suggest you download the free trial for Movie Studio Platinum 12 64 bit edition and see if you still experience the same problems. This version is much more powerful than Version 10, and on the right computer should work a lot better.
      All Video Editing programs need decent computers to work properly - especially if you are working with 1080p HD Video.
  • This commment is unpublished.
    martin michaud · 08:04 09/12/2013
    well I just clean the movie studio platinum program cache and I lost all my project, where it went
    • This commment is unpublished.
      • Moderator
      · 09:02 09/12/2013
      Your project is still on your hard drive. Only the "quick link" has been removed.
      If you are using Movie Studio go to Project - Open - My Documents - (Vegas) Movie Studio Projects folder - your project.
      If you are using Vegas Pro go to File - Open - My Documents - Vegas Pro Projects folder - your project.
      • This commment is unpublished.
        martin michaud · 10:34 09/12/2013
        thats what i am doing and not finding the project
        • This commment is unpublished.
          • Moderator
          · 17:05 09/12/2013
          Resetting Vegas does not and cannot delete any projects you have saved.
          If you are not finding your project then either you forgot to Save it or have accidentally Saved it in a totally different part of your hard drive.
          There is any easy way to find missing projects. Use Windows Search function that pops up when you press the Windows Start Button.
          To search for ALL Movie Studio projects on your Hard Drive search ".vf" or search ".veg" for Vegas Pro projects. If this does not produce results, then it means you never saved the project. You can also search by the name of the project if you remember it.
          • This commment is unpublished.
            martin michaud · 11:22 10/12/2013
            Derek thank you for helping me. it was working this project for a while and everytime i was finishing working on it i was saving it, so that time i was working on it and sudenly the program freeze, so after waiting for long i decide to close the program, i was not ask by the program for saving it, when starting back the program i reset the vagas and never saw back the project, i try what you suggest me still not finding it,
            • This commment is unpublished.
              • Moderator
              · 13:47 10/12/2013
              You are not alone in loosing a project. I must have done the very same thing at least 10 times by now. I remember once loosing a project I had spent two weeks working on. Just notch it up as a learning experience.
              This is what you should do if it ever happens again.
              If program freezes or crashes, re-boot the program.
              After it boots up, it will ask you if you want to [B]restore[/B] the project that crashed - say [B]YES[/B]
              When the restored project opens up, it will NOT have the right project file name - it will be just a big number. [B]It is very, very important that you RE-SAVE this restored project immediately - make sure you re-name it and make sure you save it to the right folder location[/B]
              The last step to do after this is to [B]re-boot[/B] your computer. Always re-boot after crashes.
  • This commment is unpublished.
    carol Wright · 19:34 13/11/2013
    Thanks for these suggestions.
    I have Architect 4.5 Studio and have never had this problem before...using two .wmv files of about 110 megs each. End size about 1.5 gigs probably. Wanted to burn dvds from existing audio/video prepare folders...would not even do lead in processing. Could not even cancel the Burn and had to force program to close.

    after reinstall of the program, the videos on menu page would be in empty box where little video would usually play, and right now they both say Render Failure. Preview gets me only the audio track, with the video black.

    And then a few times, the videos connect and preview looks okay...then back to Render Failure. I have deleted and brought in the videos again. the original rendered videos are actually ok, when i test play from the file. and some other videos I opened are also okay.

    I emptied the cache, rebooted, etc.

    system is Windows 7 ultimate, and the programs are stored on the 64 part.

    six gigs ram
    other details.
    2.67 gigahertz Intel Core2 Quad Q6700
    64 kilobyte primary memory cache
    4096 kilobyte secondary memory cache
    64-bit ready
    Multi-core (4 total)
    Not hyper-threaded

    12 gigs free on C drive.

    videos are 720 x 480.

    maybe go back to movie studio and render to mp4?
    • This commment is unpublished.
      • Moderator
      · 04:52 14/11/2013
      Hi Carol
      Firstly, DVDs only burn to MPEG2 video. If you have old DVD Architect projects, the videos in the prepared folders would be using MPEG2 video codec with a .VOB file extension.
      Your best solution would be to go back into Movie Studio and re-render your original videos but this time render to a proper MPEG2 DVD Widescreen template - not .wmv or .mp4. When you use videos like this, DVD Architect actually has to re-render them all over again into MPEG2 video.
      I have a tutorial which explains the full manual workflow.
      After you have rendered your videos, you could then Open your Original DVD Architect Project and swap the old videos for the new ones. Use the same method I show in the tutorial for Importing your MPEG2 videos.
      • This commment is unpublished.
        Carol Wright · 07:31 19/11/2013
        HI, just returning to this page to reread your suggestions.
        One of the aux problems I had in rendering already prepared files...is that I was using DVD-R...had just bought a new stack and didn't realize the implications. On my burner or system, it wants the PLUS. so at least I could burn a dvd cleanly if I got the files prepared. After a lot of off and on, Render Failure messages on imported videos..then they would be active. I was able to burn a DVD of the project, so that is over the hump. Now to solve the problem.
        I will try rerendering the videos in the MPEG 2 as you suggest. And see if this DVD Architect nonsense will behave. And why it was a problem all of a sudden...generally... and was not before?? Hmm...

        I think I have enough computer resources to do this, and perhaps can add even another two gigs of ram (guess I have to buy two two-gigs) if my MB will support it.

        Thanks a lot for your time and generous advice. Most advice along this line is from users of Vegas Pro. so could not assume that little old version of Architect had same issues or solution.

        There is no Preferences>Video to alter the choice of GPU or not. I think that is the solutiono n some browsers even when having video display problems while surfing. it is trying to depend only graphics card when It could be using the CPU, if I understand this. So, will try your suggestion and report back. And if you think with my computer resources I can upgrade to current level of MovieStudio and Architect, willing to give it at try. I was not going to buy it if the ultimate problem is inadequate resources of the comptuer itself.

        Thanks again, and will report success or not. Will first look at your link!!

        • This commment is unpublished.
          Carol · 09:39 19/11/2013
          Hi, Derek,
          I went carefully and chose one of the videos to rerender as you carefully suggested on your linked set of instructions.
          There are a few differences on the 4.5d version I use, like not having options of GPU acceleration choice,and later in DVD Architect, one choice not specifically saying MPEG2, but only NTSC Widescreen.

          Anyway, It worked! I redid only one of the videos fromMovie Studio into MPEG2 and the sep AC sound render file. and imported into Architect as you suggested. Just a rough import of the video/audio,which did come along for the ride as you said.
          the one video took very little time to prepare and then burn to DVD. It plays fine in good quality.

          The important thing is that thus far, this file is Stable link, not Render Failure (was wmv format). So will continue to remake that troublesome video program and if things stay stable, upgrade to most recent version, if my computer will allow it.

          And thank you for your very clear instructions. I will return for other tutorials and buy your dvd,should you ever finish it.

          Carol Wright in California, USA.
          • This commment is unpublished.
            • Moderator
            · 16:32 19/11/2013
            Please download trial version of any Sony program before you buy - then you will know if it can work before spending money.
            Please also be aware that Movie Studio now comes in 64 bit version as well as 32 bit version. So if you download a trial, select 64bit version from drop down box so you install the correct version for your computer.
            GPU Acceleration is only a relatively new feature - it was not in older versions of Movie Studio.
            Your computer must be relatively old in computer years. Any modern computer you buy today should be able to burn plus R and DVD-R with no problems at all. It was only in the old days that manufacturers preferred one type or the other. Your CPU is also showing it's age a litle bit. The newer Intel i5 or i7 CPUs are 4xCore by default and now optimized for HD Video Editing. Your CPU was the last Intel Series made before i5 and i7 was released. i5 and i7 are now up to 4th Generation.
            All the best.
            • This commment is unpublished.
              Carol wright · 15:40 09/12/2013
              I did the trial of version 11, not wanting to push my luck, and architect 5. both worked fine and I have since bought the suite.

              Seems it was a combination of things, changing to MPEG 2 and separate render of audio helped. Changing DVD from DVD-R to DVD+R...and then finally upgrading to Movie Studio Platinum HD 9 suite.

              Why it all decided to NOT work after working for a few years fine is still a mystery, but at least I am back in business. Thanks for your advice.

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