It shouldn't, but some xbox drives are more picky than others. Use one that works and stay with it. Identify your drive here.. http://www.llamma.com/xbox/Repairs/Images/DVDComparison.jpg
It basically depends on what drive you have. Thompsons are more than likely to read +R than -R. Phillips, well, what can I say, you have to experiment with those . Samsungs, however, tend to like -R more than +R. Use that comparison chart and see which drive you have. Good luck!
