One of the benefits of registering on this site is that you can add this to your private page and add notes then print details of your collection, want lists etc. You can also leave public comments on each release.
The Sony SBM DSD releases with SRCS prefix were initially released as Mini LPs and then later also sold as jewel cases.
Many of the jewel case versions are still available new.
If buying a new one online be sure to check if it is a mini LP version.