Still having troubles

101AS i think is the model, im not sure, tis the 20x lite-on, anyways… i returned my last one, cause it wouldnt recognize blank cd’s, well, not it recognizes blank cd’s but, it wont burn on them… it goes through the whole burning process, taking 15 minutes for a full cd, but then there is nothing on the cd… i dont feel like spending another 10 dollars on an RMA, what should i do.