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  1. When I import this video into Corel VideoStudio, it immediately has this problem, looks like there's maybe some kind of synchronization error?

    Here is the original:
    and here is after simply importing into VideoStudio and exporting it, no edits made (it also looks like this in the preview):

    Can anybody tell me what the problem is? I am just trying out VideoStudio, would like to purchase it but not if this is the best it can do!
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  2. You need to make those videos public if you want help.
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  3. Oops! Changed them to unlisted, I presume that will work?
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  4. What format is the original ?

    Use mediainfo (view=>text) , copy and paste the text results back here
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  5. General
    Complete name : G:\Documents\Halloween\GA_Beauty_Roamer1_Win_H.mp4
    Format : MPEG-4
    Format profile : Base Media / Version 2
    Codec ID : mp42 (mp42/mp41)
    File size : 25.4 MiB
    Duration : 31 s 598 ms
    Overall bit rate mode : Variable
    Overall bit rate : 6 737 kb/s
    Encoded date : UTC 2014-07-12 03:40:24
    Tagged date : UTC 2014-07-12 03:40:25
    TIM : 01;00;00;00
    TSC : 30000
    TSZ : 1001

    ID : 1
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : Main@L4.2
    Format settings : CABAC / 3 Ref Frames
    Format settings, CABAC : Yes
    Format settings, Reference frames : 3 frames
    Format settings, GOP : M=4, N=30
    Codec ID : avc1
    Codec ID/Info : Advanced Video Coding
    Duration : 31 s 598 ms
    Source duration : 31 s 598 ms
    Bit rate : 6 541 kb/s
    Width : 1 920 pixels
    Height : 1 080 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Variable
    Frame rate : 29.970 (30000/1001) FPS
    Minimum frame rate : 29.970 FPS
    Maximum frame rate : 30.000 FPS
    Standard : NTSC
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.105
    Stream size : 24.6 MiB (97%)
    Source stream size : 24.6 MiB (97%)
    Language : English
    Encoded date : UTC 2014-07-12 03:40:24
    Tagged date : UTC 2014-07-12 03:40:24
    Color range : Limited
    mdhd_Duration : 31598
    Codec configuration box : avcC

    ID : 2
    Format : AAC LC
    Format/Info : Advanced Audio Codec Low Complexity
    Codec ID : mp4a-40-2
    Duration : 31 s 598 ms
    Source duration : 31 s 637 ms
    Bit rate mode : Variable
    Bit rate : 192 kb/s
    Maximum bit rate : 255 kb/s
    Channel(s) : 2 channels
    Channel layout : L R
    Sampling rate : 48.0 kHz
    Frame rate : 46.875 FPS (1024 SPF)
    Compression mode : Lossy
    Stream size : 730 KiB (3%)
    Source stream size : 731 KiB (3%)
    Language : English
    Encoded date : UTC 2014-07-12 03:40:24
    Tagged date : UTC 2014-07-12 03:40:24
    mdhd_Duration : 31637
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  6. It could be variable frame rate causing problems
    Frame rate mode : Variable
    Frame rate : 29.970 (30000/1001) FPS
    Minimum frame rate : 29.970 FPS
    Maximum frame rate : 30.000 FPS
    Some editors have trouble processing VFR , even if it's only minimally variable

    Remuxing it as a CFR (constant frame rate) file should help . You might try mymp4boxgui . If you're ok with commandline usage, mp4fpsmod can just fix the timecodes in place

    There are other options for editors too, free ones like Davinci Resolve, Shotcut . Some of them handle VFR slightly better

    But I would try the simple thing first - just rewrap it as a CFR file
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  7. I tried converting it with MP4Box, but when I looked at the converted file with MediaInfo it still said it was a VFR...the rate itself changed but not that designation. I tried converting it using VLC and that did in fact change it to a CFR....however, it still did the same thing in Corel VideoStudio. I took a look at Davinci and it imported and ran that video just fine, so I might just abandon Corel and go with that unless you have any other ideas? I did notice that this file (and others from the same source, which do the same thing in VideoStudio) will not play in Windows Media Player v 12. It will load the file and play the audio, but all it will display as video is a horizontal line near the top of the screen. I think I will ask the people I got these from if they can shed any light on this too.

    Thank you so much for your help!
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  8. It should play in WMP , but you can install LAV filters

    I don't use Corel VideoStudio , but the free version of Resolve is quite good and they are constantly improving it. One problem is that it's a bit resource intensive, the minimum requirements are quite high .

    It also depends on what type of project you are doing - in terms of what types of edits or features that you need. But there are good free editor options in 2019 .
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  9. I installed the LAV filters and now it plays in WMP. I also contacted AtmosFX, the provider of that video as well as Corel, we'll see if they have anything to say about it. In the meantime I will continue checking out Resolve, it does seem like a pretty robust program. Thanks again for your help!
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  10. Cheers

    Another thing you can try to make it "CFR" is to demux to elementary audio and video streams, then remux it at 29.97 . I think mymp4boxgui or yamb beta 2 can do this .

    Or just move on, Resolve is pretty solid and has improved significantly as an "editor" the last few years
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  11. Corel got back to me regarding this, their answer was that the trial version of VideoStudio has some limitations and that if I purchased the full version it would fix you can probably guess that raised a few hackles! However, I am a long time user of Coreldraw and up until I hit this problem was pretty sure I would buy it anyway, so I took him at his word and bought it and lo and behold it DID fix the problem.

    Thanks for all your help!
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