Problems when brning psx cue-sheets

[BlackCobra]

When I burn cue-sheets with cdr-win, everything looks allright... until i put the cd in the console. After the first white screen with sony-logo the black screen comes up. In normal cases it contains a playstation-symbol and some text under. All games i burn have this screen ####ed up. No psx-symbol, and the only text is two "d". Then the game doesnt load anymore. I have tested to write in diffrent speeds with same result and i have tested many diffrent games. I have an internal mod-chip.

Please help!