Also, just to confirm: no point in upgrading the memory of a player, it won't do anything to help the player handle more songs?
I think more memory is good if it works -- I did upgrade three of my players to have more RAM, but since then have removed it from two of them (stability issues). It is very difficult to install so that everything still works reliably long-term.
The third player here, still has the full upgrade in it (a PCATS board, I forget what the total is but I think it has 32MB now).