I can now confirm that the added memory on my Mk2a (Rita) is NOT used at all by the player software. It has exactly the same memory footprint with and without the extra 16MB installed.

But third-party apps.. and the Linux page (disk) cache.. and the built-in webserver.. and most likely player SYNC operations... all of these will take full advantage of added memory space.

And on Mk2 players, the extra 4MB probably *is* used by the player, though this will require confirmation.

Eventually, somebody will give us an alpha release that can make use of more memory, rather than using totally hardcoded internal limits (which were fine, until we started hacking things ).

EDIT: I can also confirm that negative ReserveCache=xxx values are completely ignored by the player

Cheers