

It looks perfectly clean,under light.
What I do is after pouring the foamy soup on the glasses I rub it a bit with my hand then rinse it.
And dabbing with tissue never left those splotches
I think it might be because of the quality of the lense or you are using too much soap












The main cost is the hardware you could have open source NAS OS’s
The thing you read about optical discs is not about HTL inorganic blurays
You read about CD’s which uses an organize layer for the data.
Inorganic HTL blurays lasts 50+ years, and can be stored in room temperature and at high humidity.
About the box, those sleeves are not.designed for archival disc archival storage boxes protect blurays from scratches
And sony Archival Discs are inside a cartridge protected from scratches