I wouldn't worry about it. Before I got a new system, I was using an ancient 16x Plextor CD-RW drive (one of the fastest drives during early 01) and believe me, I burned my fair share of CDs, but it never gave out. I got rid of the entire system in 05 and it was still running strong.
"Nagi, how do you feel about being 'normal'? Normal means that if you leave something alone, it just remains that way forever. So if you can't stand that, then you have to be "not normal" in some area... - Seiichi Kirima's dying words