That's a normal SafeDisc error. Problem is, with your Lite-On, that it can read the pre-gap of the disc (where SD2.80 stores information in) which CloneCD does not read (and thus also doesn't write). Sollution would be to use the emulate weak sectors setting when writing and when playing the back-up you must enable Hide CDR Media. If you want more information you can read this thread or this thread. Good luck!