Cheap "Chinesium" USB drives can be wildly unreliable, plus they're not write protectable meaning your data could be overwritten or deleted by a shitty app/antivirus, or just get malware transmitted over it.
Optical media has the native feature of being written in immutable sessions so your older data is always preserved instead of overwritten(excluding RW media), and also can be write protected when desired by finalizing the session, plus its long data retention shelf life for archiving purposes compared to cheap flash, all make it a great choice for the uses cases of the medical industry file transfer or personal archival at home.
Optical media has the native feature of being written in immutable sessions so your older data is always preserved instead of overwritten(excluding RW media), and also can be write protected when desired by finalizing the session, plus its long data retention shelf life for archiving purposes compared to cheap flash, all make it a great choice for the uses cases of the medical industry file transfer or personal archival at home.