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Problems working/rendering .MP4 files

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John Lee
Problems working/rendering .MP4 files
on Apr 24, 2019 at 8:40:15 pm

I used Magix 14, but something odd has happened lately. Sometimes when I use a .mp4 file as a source, I can't "see" the video only the tracks - only can hear the audio track. Or sometimes the source .mp4 is fine to use, but the resulting .mp4 video I create can't be recognized by Twitter when I try to upload it.

I know that means something about Vegas not recognizing the right codec, but I've never had this problem with a basic .mp4. I installed K-Lite in an attempt to fix it, but that didn't help. Now the .mp4s on my PC are listed as ".mp4 - VLC", which I'm pretty sure wasn't the case before. So I uninstalled K-Lite, but the VLC association still stands.

Any idea what am I doing wrong and if there's a solution? Thanks.

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George Dean
Re: Problems working/rendering .MP4 files
on Apr 24, 2019 at 9:19:59 pm

Hi John,

We need some additional information, but before that.....

Although this is too late, never, never, ever install K-Lite codec pac, it has the capability to screw your system up and only makes Vegas Pro worse. I assume when you say 'Magix' you are referring to Magix Vegas Pro 14.

If you used the Windows Control Panel to uninstall K-Lite, you may also want to take a look at your C: drive and delete anything name K-Lite, as well as, look at the Windows Registry and delete any references to K-Lite. If you are not comfortable with editing the registry, you may want to use something like CCleaner to clean the registry.

OK, before anything, I recommend doing a full reset of Vegas Pro. Hold down the 'Ctrl+Shift' keys while you double left click on the Vegas Pro desktop shortcut. In the small window, check the box 'Delete all cached application data', then left click on 'Yes'. This will reset Vegas Pro to the original installation settings, and more importantly delete all the pesky cached application data that builds up and over time may cause Vegas Pro to do strange things.

Assuming that does not make a difference, can you post screenshot of your Project Properties, Preferences (display and video tabs), and your source media specs. You can use the free app Mediainfo (in Text view mode), which provides the specs that may be important to members here to help.

Also, what device was used to get your source media (mp4) files? A camera, what model, etc? Or screen capture, what program? Or download, from what source?

Are you editing in 32-bit floating point, or 8 bit?

Best Regards......George

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