Thanks for answering. The error is an error Code: 00007180 type. I folowed the reinstallation stpes and everything was working importing all of my music files. But since I needed to use the computer I stopped it so that I could continue later and guess what? The same error comes up again and seems that I will have to redo the whole process again!. Will I be able to add more MP3 music to Sonicstage after I import the files I have in my PC or is this a futile effort? However, things suppose to improve for the better, so far this newer versions of Sonicstage are giving me too much trouble for doing the simple things older versions allowed me to do easily. I bought 2 CD players, 1 car stereo and a small radio for playing my atracc CD's and was about to get a couple of more Sony players, I have even talked to friends and relatives about it, but now I am dissapointed and discouraged for continue using atracc technology because of the pain Sonicstage has become. If these flaws are not fixed I will discontinue using atracc and Sonicstage and will not buy anymore Sony music equipment.