I’ve done a few edits on VGMdb before, and it usually takes a while for credits and links to show up if you're not a regular user or mod. When I wanted to link an artist credit, I made a small post in the database modification thread, and they cleared it up pretty quickly. You just need to be patient or flag it in the right channel, and someone from the staff usually handles it.
On a related note, I was organizing some VOB files from DVDs and needed to clean up the metadata and formats. I found this super handy
https://www.movavi.com/video-converter/vob-converter.html converter that let me turn everything into MP4s without losing quality.