It sounds like your drive might be going bad but maybe it's something in windows. Remuxing MKV files is a good way for lossless quality. DumboFab offers the .mkv remuxing solution. it's not possible. every (re)compression degrades the source material. even it target's bitrate is higher, it still happens. 5 Steps to Hardcode Subtitles to Any Videos. Step 1. Download and install VideoProc Vlogger on your Windows or Mac. Open the software and set up a new project. Add your media files, including videos, pictures, music and subtitle file (s) into the Media Library. Step 2. Navigate to HitPaw Converter and click on the “Video Converter” mode. Now, load the MKV files into the program by clicking on Convert Video Now > Choose File. Use the drag-down option next to “Convert To” and choose the MP4 format. Hit Convert. When it’s done, click on Download All to save the output file. The best way to make sure your images are the same quality as they are before conversion, add -q:v 1. q is quality, v is for video, 1 is for the quality between 1-35, the lowest being the best quality. That would make your new command as follows: ffmpeg -i BBB.mp4 -vcodec mpeg2video -s 1920x1080 -q:v 1 -acodec copy -f mpegts BBB.ts. Share. Here you can reduce the size of HD/4K/8K videos to 90% smaller without losing quality. Start to shrink MKV, MTS, HEVC and big-sized AVI, MP4 videos for hard drive, portable devices or webs. www.winxdvd.com. You can shrink video by 90%! Also possible to shrink video by using some another soft - better to use Open Source soft . Step 1 Download and install HandBrake. Click "Open Source" to add the MKV file that you want to make the file size smaller. Step 2 Click "Browse" under "Destination" to set the destination folder. Step 3 Set MP4 as the output format from the "Container" list. Of course, you can set AVI instead to convert MKV to AVI. Free to compress video online without losing video quality and resolution. The compressed videos ensure compatibility across different devices and platforms. Minimise video file size under the format of MP4, WEBM, MOV, AVI, MKV, WMV and more with fast video compression speed. The same can be done with the audio bitrate (160Kb/s+). The high quality profiles will require more CPU power because of things like b-frames, adaptive quantization, 2-pass bitrate control, CABAC, and various other options, which provide better image quality at lower bitrates. Quality options may also improve quality even with high bitrates. Fr3sZt.

can you convert mkv to mp4 without losing quality