I got the same Kernel panic problem with the 4.02 CD HD install, I will try another download.
Btw just a note from my friend who worked in a CD factory, he said there is some code marked at the inner track about the max writing speed of the disc for the burner to read, but some off brand disc intentionally marked with higher than useable writing speed, so the disc can be sold at higher price, but will be burnt with error at that speed. The coating of the disc must be of high quality in order to receive enough lazer engry when burn at high speed, because the lazer pulse will be very short, so burning at lower speed is always safe.