Johnny

There are two flavors of Smart Media Cards - 3.3 Volt and 5 Volt. The PSR-3000 requires the 3.3 Volt. Here is an excerpt from a post I made several years ago on the PSR Tutorial Forum on how to tell the difference:

Hold the card so that the gold foil side is facing you with the diagonally notched off corner at the top. With the card held this way, if the top RIGHT corner is diagonally notched off, then that is a 3.3 VOLT card and is CORRECT. If the top LEFT corner is diagonally notched off, then that is a 5 VOLT card and will NOT work in the PSR-3000.

Good luck !