I just recently purchased the nec 2500a dvd 8x burner and have went into the pio mode to slow it down from 10 minutes to about 24 minutes burning time. I am using 4x -r from memorex and using the dvd x plat in simple mode. I know that the nec is an eight x burner for -r +r and 4-rw 4+rw. However, out of the pio mode with a -4x, it takes around 10 minutes and the movie looks like it is just a little too fast. Should I get a 4x burner or pay the big bucks and buy the 8x +-r or 4x rw??????????.