Hi,

There are ways of recording visually lossless quality in OBS other than 300 Mbs AVI.

You do not need to record mathematically lossless quality; it is a common hobbyist mistake, lying more in the realm of OCD than anything practical.

You didn't say which flavor of AVI you recorded in OBS; however, your correct course would have been to determine the encoder, and download that specific VFW codec you need from its source.

https://www.vegascreativesoftware.info/us/forum/faq-how-to-post-mediainfo-and-vegas-pro-file-properties--104561/

K-Lite is a huge can of worms crawling in your registry. I sympathize with your good intentions; however, you are entirely on your own getting rid of it. Since it replaces Windows System Codecs that Vegas needs for its normal operation, you may need to restore a known good system backup image, or perform a clean Windows OS installation, and then reinstall Vegas.

There is a chance you can transcode the files you already recorded to something compatible with Vegas in Shutter Encoder.

Best of luck, and welcome to the discussions.

I didn't see any issues with K-Lite nor read anything about K-Lite containing malware or anything or really affecting other file formats like mkvs and mp4s on VEGAS but, I did uninstall it. I also have FRAPs installed.

Did not know that OBS Lossless recorded things in AVI since I usually used the advanced options. I probably accidentally switched it without noticing.

Here are the video properties:

Format                                   : AVI
Format/Info                              : Audio Video Interleave
Format profile                           : OpenDML
Format settings                          : PcmWaveformat
File size                                : 19.1 GiB
Duration                                 : 9 min 3 s
Overall bit rate                         : 301 Mb/s
Frame rate                               : 60.000 FPS
Writing application                      : Lavf61.1.100

Video
ID                                       : 0
Format                                   : YUV
Codec ID                                 : ULH0
Codec ID/Info                            : Ut Video Lossless Codec
Codec ID/Hint                            : Ut Video
Duration                                 : 9 min 3 s
Bit rate                                 : 300 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 60.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Compression mode                         : Lossless
Bits/(Pixel*Frame)                       : 2.410
Stream size                              : 19.0 GiB (99%)

Audio
ID                                       : 1
Format                                   : PCM
Format settings                          : Little / Signed
Codec ID                                 : 1
Duration                                 : 9 min 3 s
Bit rate mode                            : Constant
Bit rate                                 : 1 536 kb/s
Channel(s)                               : 2 channels
Sampling rate                            : 48.0 kHz
Bit depth                                : 16 bits
Stream size                              : 99.5 MiB (0%)
Alignment                                : Aligned on interleaves
Interleave, duration                     : 21  ms (1.28 video frame)

@forgetfulman You should be able to use ShutterEncoder to transcode your UT Video clip to a near lossless format like hevc which Vegas reads. I can't seem to duplicate the OBS capture you did with the latest version of OBS but was able to transcode a lossless hevc clip I already have to Utvideo avi with Voukoder. And then converted that utvideo avi clip with ShutterEncoder to h.265 with cq=1. Which Vegas reads fine.

I tried getting OBS to capture with Nvidia using the same settings directly on my laptop but it didn't work very well.

@forgetfulman You should be able to use ShutterEncoder to transcode your UT Video clip to a near lossless format like hevc which Vegas reads. I can't seem to duplicate the OBS capture you did with the latest version of OBS but was able to transcode a lossless hevc clip I already have to Utvideo avi with Voukoder. And then converted that utvideo avi clip with ShutterEncoder to h.265 with cq=1. Which Vegas reads fine.

As a practical matter, OBS can save the same format directly with gpu hardware... I tested Nvidia hevc, cqp=1 saved with OBS v3.2.2 and quality was similar to the utvideo avi clip. But the hevc mp4 was much smaller. Nvidia 10-bit hevc mp4 was 137 mbps compared to Utvideo avi at 483 mbps.

I tested with these OBS settings on my laptop:

Oh it was set to "Simple", not Advanced. And the setting on the recording to be "Lossless".

but thanks for the setting, I'll try that out. My setting was NVENC H264 with VBR and output as MKV.