Hi, I just discovered this forum and find it quite useful, but still one big problem I'm facing currently can't be solved by reading the articles. I bought an NW-E016F yesterday, together with SS 4.3. When I import my music, three situations emerge: 1) The music file is imported in the format of MP3, playback and transfer both get no problem 2) The music file is imported in the format of WMA, playback for most songs are not OK. I mean, when I double clicked the file, nothing happens. (Only for one or two songs playback is successful). As for transfer, almost all failed with a dialog box saying "Transfer is not allowed" (What makes me not understand is that all of them are not copyright protected) After reading a previous article in the article, I tried the method of converting the WMA files into ATRACT3PLUS, and all transfer after converting is successful. 3) T_T HELP!! Quite a large number of my MP3 files, after importing are recognized as "Unknown format", playback results in nothing happening. Transfer fails saying " Cannot load the rights information for the selected tracks. The file format may not be supported by SonicStage." - All of them can be played using other programs (WMA, Media Center), and can also be transfered and stored on IPOD by using Itunes. - I tried to open them in programs like GoldWave and save them as MP3 format, but it doesn't help either. - I redownloaded some of them from Internet again, and found that only when I set SS as default player and choose "Open" instead of "Save" before downloading, playback can be done. However, after some time when I was to transfer them to my walkman, it said "files cannot be found" (I think it's because they are stored as temporary file) It will be really crazy for me to download all of them again and this might not help either in the end... I'm really frustrated with SS 4.3, 2 or 3 years ago when i use SS 2.0 such things never occured. Anyone knows how to solve this problem ??? Thanks very much!!!! (My OS is Vista Home Premium, sorry if you find my language strange, English isn't my first language )