After those things, the format itself is the most important. I believe the most useful format for long term storage is: SFZ.
Back in 2023, I laid out my arguments for SFZ in a thread at KVRAudio:
https://www.kvraudio.com/forum/viewtopic.php?p=8691650#p8691650
#MusicProduction #LinuxAudio #WindowsAudio #MacAudio #Music #Samplers #Audio
This thread continues... Page 7 of...