my player can't play songs over 50 properly always restarting

have mp3 player cm60009v1-is 2006/09/19 act_v3.5.35 it is 1gigabytes,when i put over 40 songs and 5 videos it begins to go on and off which makes it not to play songs properly(IT HANGS THE PLAYER)very annoying. pls what can i do to play over 100 songs and more videos and the player won’t go off restarting.

i have d same problem
gud_boy_44@yahoo.co.in
thnx

i’m having battery problem with my mp3 player,cm60009v1-is