I need new firmware for mp4 player

Hello, everyone. My name is Hyuk Hur. I live in Hawaii,U.S.A. I got mp3/mp4 player from someone. This is 4gb shpae is like ipod nano. firmware for this player was upgraded March 15, 2008. Name of farmware is LSC_91N154V_A1. This is made in China but there is no brand name. I saw someone in this website has similar player as I have. Firmware is similar. Firmware starts with LSC_91N something. Anyway, if someone knows brand name of this player I have, please give me the name including the website. Please... Thank you!!!

Thank

hi, you can look this from www.mobilephone02.com

best regards