mine when i first got it had this annoying habbit of reseting iself every odd CD, so id be ripping a stack of disc's but giving up after the 4th cos it had already reset itself twice, i never did find out why and ive not tinkered with it per-se, the most ive doen was disconect the dvd to use the cable for my old pc hard drive when i data dumped, but iir it was still doing the disc insert reboot trick after i plugged it back in