I noticed the files were named out of order after ripping the Seinfeld UHD. Put all of your season 1-5 files into a single folder, then open Windows PowerShell and type cd "C:\Video\Seinfeld" and enter (replace the C:\Video\Seinfeld part with whatever your folder path is... you can copy it and paste it within the quotes). Then if you paste the below text it will get you proper episode names.
If this is something that's useful to people I'll update this with the rest of the seasons. I'm currently waiting on the decryption to be made available.
rename-item "Seinfeld Season 1_t00.mkv" "S01E04 The Robbery.mkv"
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This was super helpful for me. If you don't mind posting the rest, I could use it. (if you still have it). Thanks!