hi, i have powerdvd xp 4.0, im running it on windows 98

i have problems playing svcd sometimes, it will play 1 or 2 videos fine then it will say illegal operation and it will close and the only way for it to play svcd again is for me to restart.
this is annoying when i want to watch multiple videos

ive tried re-installing powerdvd but the same thing keeps happening
can anyone help?
thanx