help please

[sublime90]

i recentlly installed my magic 3.1 chip and it looks like all the soldering is good. i turn the ps2 on and the only games i can play are OG ps2 (dvd) games, OG psx and burned games wont play same as cd based ps2 games. yes i put the game in and put the ps2 in standby and pressed restart and nothin. any advice would be appreciated

thanks
bob

update
i think it might be a bootin up problem because i was messin around with it and i get a solid black screen and sometimes i get the browser screen again im goin to burn them on better cds and see what happens from there. i dont think this is a soldering problem but more or less a backing up and booting problem