Contrary to what everyone believes (or WANTS to believe), there is not a single manufacturer in the audio business who guarantees that their CD players will play EVERY cd-r. The problem is that home cd burners (whether in your computer or in your home stereo) carry approx. 80% of the reflectivity of the origional cd. When cd's are burned at the factory, they come off the master (or remastered) recordings of the artists. They use equipment that costs more than you will make the next 10 years. I won't go into the whole digital-analog process -- the bottom line is a factory cd is the only cd that has complete refective properties. CD-R's are dimminished by about 20%. So, some cd players, even though they have a sticker on the box that says it plays cd-r's, will not play all of them perfectly each and every time. Which, by the way, is a complete joke because my Sony home changer can play CD-R's and it is almost eight years old. The technology of a CD hasn't changed in 20 years. Just the fact that you can burn your own at home, but not a perfect copy.