wth?

My 8gb memory card i brought from radio shack and i downloaded the regular R4 Firmware from the website and dragged it inside the memory card but it doesnt work it just says loading for some odd reason? But when i put it inside my R4schd and i download the other firmare it works perfect but i need help making it a regular R4 card. And i only have a ds lite i might need to buy either a regular ds or dsi. Please help

original R4 does not support SDHC so you are limited to a maximum of 2GB cards.

Original R4 only works with 2 GB or lower.