For "extra quality" — KAD should be your primary focus because it doesn't suffer from server takedowns.
To monitor KAD health (extra quality indicator): emule kad server list extra quality
If KAD shows "Firewalled" or contacts drop below 50, your searches will be poor. For "extra quality" — KAD should be your
"Extra quality" on eMule refers to the metadata integrity and connection stability, not necessarily the resolution of the video or audio. Always verify the file size and source count. To monitor KAD health (extra quality indicator):
Warning: Public server lists (and KAD) contain legal and illegal data. This guide is for technical education on legacy peer-to-peer architecture and retrieving uncorrupted public domain or open-source files. Respect copyright laws in your jurisdiction.