I am looking to purchase a lite-on cd-rw specifically the ltr-24102b. I looked at the lite-on web site and there is 2 different 2410 models. I live in australia and every dealer i have spoken to says "there is no such thing as the ltr-24102b only the ltr-2410" So my question is if I buy the ltr-2410 will this be the same one as the ltr-24102b. the other 2410 model is the ltr-24103s what is the difference in these 2 as the web site has exactly the same specs for both. Is one internal and the other external. if you know could you PLEASE HELP me out.