Does anyone know if Sony is subtly switching sides? When they released one of their first PC DVD burners a couple of years ago it could only handle the DVD+RW format; then later the +R/+RW format. Now they have a drive which handles all 4 formats (+R/+RW and -R/-RW) for the PC. I just purchased the set top Sony RDR-GX7 DVD recorder which handles -R/-RW and +RW formats. According to the manual, it seems that if you wish to take advantage of all of the features advertised about this recorder you will need to use the -RW disc. It seems like if you use the +RW disc it becomes just a flat VHS tape with a few extra features.