http://nightcoreuniverse.net/viewtopic.php?f=17&t=4900
Maruko Toolbox is a Video-prosessing GUI
Main features
High quality H264+AAC video compression
Add ASS/SRT subtitles
AAC/WAV/FLAC/ALAC convert
Extract/mux video and audio from MP4/MKV/FLV losslessly
Maruko Toolbox download
https://pan.baidu.com/s/1pLGVdZ9, click 下载(78.8M)
Main page (Chinese) http://maruko.appinn.me/
Change language to English and interface
http://imgur.com/gallery/0DI4y
Replace the audio after rendering the video
1. In the Mux tab, under Mux as MP4, drag the rendered video and the uncompressed audio to the video and audio address bars
2. Choose where to save with the output button (optional)
3. Change the .flv to .mp4 in output address bar (IMPORTANT)
4. Click replace audio (and wait 1 second)
Usage examples
Better preservation of video quality, compare to VideoPad and Windows Movie Maker
Nightcore Drive me crazy sped up 25%
https://youtu.be/5RJAHcvA4Vc?t=15s
Nightcore - Drive Me Crazy sped up 31% (the Remake)
https://youtu.be/xpl0YSlch0Yt?t=15s
The 25% one is scratched using VideoPad, you can see the colour is less vibrant and kind of greyish.
Windows Movie Maker always can't handle images well
example of WMM vs Sony Vegas by emilemil1
Nightcore Drive me crazy example
Windows Movie Maker, blurry
http://i.imgur.com/6iBNrS2.png
Maruko Toolbox
http://i.imgur.com/Z3XEU5w.png