thanks alot for your help
1) well i use dvd2svcd and i think it does not convert audio ! í know that the audio is taken care of first and then the cce encoder starts ...
2) mhmhm actually i leave the program on idle ... i have nothing running but kazaa or cuteftp ... ( firewall and antivirus software )
3) i will try that

although i think i have already tried that :S
my computer :
1.2 athlon
512 mb infineon ram
g2ti
... if you need more information just tell me :D thanks alot