This is the meta info of the video:

General
Complete name                            : D:\AndroidDev\Videotutoriales\12. copias de seguridad.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/mp41)
File size                                : 132 MiB
Duration                                 : 5 min 50 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 3 156 kb/s
Writing application                      : Lavf58.29.100

Video
ID                                       : 1
Format                                   : MPEG-4 Visual
Format profile                           : Advanced Simple@L1
Format settings                          : BVOP
Format settings, BVOP                    : Yes
Format settings, QPel                    : No
Format settings, GMC                     : No warppoints
Format settings, Matrix                  : Default (H.263)
Codec ID                                 : mp4v-20
Duration                                 : 5 min 50 s
Bit rate mode                            : Variable
Bit rate                                 : 2 957 kb/s
Maximum bit rate                         : 14.3 Mb/s
Width                                    : 1 768 pixels
Height                                   : 964 pixels
Display aspect ratio                     : 1.85:1
Frame rate mode                          : Variable
Frame rate                               : 29.412 FPS
Minimum frame rate                       : 15.000 FPS
Maximum frame rate                       : 30.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.059
Stream size                              : 123 MiB (94%)
Writing library                          : Lavc58.54.100

Audio
ID                                       : 2
Format                                   : MPEG Audio
Format version                           : Version 1
Format profile                           : Layer 3
Format settings                          : Joint stereo / MS Stereo
Codec ID                                 : mp4a-6B
Duration                                 : 5 min 49 s
Duration_LastFrame                       : -1 ms
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Sampling rate                            : 44.1 kHz
Compression mode                         : Lossy
Stream size                              : 8.01 MiB (6%)
Default                                  : Yes
Alternate group                          : 1

Could be a problem with the name of the file. Delete the dot after 12.

Could be a problem with the name of the file. Delete the dot after 12.

I removed the dot and still the problem. And I have other files with the dot and can be read correctly.

Vegas does not like files wth variable framerate and those of you are a lot different from15-30 fps.
Maybe those files converting with the free Handbrake to constant framerate can help you.

I'd guess it is the "MPEG-4 Visual" coding which is refused to be read. MPEG-4 Visual is known as DivX and XviD codec.

Vegas does not like files wth variable framerate and those of you are a lot different from15-30 fps.
Maybe those files converting with the free Handbrake to constant framerate can help you.

I think this is the problem. I cannot open the vids with the variable bit rate.

This is a Vegas Pro bug, I will report it. Vegas Pro is the only Video Editor I have been trying so far that cannot open it.

I'd guess it is the "MPEG-4 Visual" coding which is refused to be read. MPEG-4 Visual is known as DivX and XviD codec.

This also can be the problem. Anyway, this is a Vegas Pro bug.

There will be no more bug fixes for Vegas Pro 16. Vegas Pro 17 better supports variable frame rate video, though in general even Vegas Pro 16 supports it, it just lacks an option how to process the frame rate.

Not supporting a particular codec is not a bug. It's a missing feature at best, but MPEG-4 Visual is outdated meanwhile (I think it's 25 years old and was developed for SD and low resolution streaming purpose, not a video editing standard).

Not supporting a particular codec is not a bug. It's a missing feature at best, but MPEG-4 Visual is outdated meanwhile (I think it's 25 years old).

I also get this error with AVC format with variable bit rate, so I guess the big problem is the variable rate.

Yes, I just tested another MPEG-4 Visual video in VP16 and indeed Vegas Pro reads this one fine.

I believe most, if not all, of ffmpeg's hardware implementations are writing "MP4 Visual." Threw me a curve once, too, but the LAV writing library is ffmpeg's.

Made another test. Vegas Pro 16 reads MP4 MPEG-4 Visual if it is video only or if audio is AAC but it does not read same video if embedded audio is MP3 (as in your case).

"Threw me a curve once, too, but the LAV writing library is ffmpeg's."

Yes, the file was encoded by the FFmpeg libavcodec codec library and they way it's used is non-standard because the profile "Advanced Simple@L1" is meant for a maximum frame size of only 176×144.

I see it's h263 as well, which puts it in the same class of codecs you were mentioning.

For a workaround, any video converter that can resolve the issue?

Hi,

On Vegas Pro 16, I have some mpeg4 videos that when I try to import them I get a message that video is corrupted or unsupported format. The video is not damaged. How can I import the video with this error?

Thanks

Hi, If video is corrupted or damaged even file format not supported, The better way you can repair corrupted video with the help of Stellar Video Repair software Then Upload on Vegas Pro 16. The issue will resolve or you can change the file extension. Than again upload on Vegas Pro 16 the issue will resolved. I hope the information will be helpful for you!