on the other hand, if you recorded at 16 bit, 48 kHz, then you will need to resample the files to 44.1 kHz before you can burn an audio CD. that's what r8brain does. when r8brain resamples a file, the default is to rename the original file "xxxxxx.wav.orig", and then the new, resampled file is "xxxxxx.wav". So the .orig file is just the original file you started with. Change it back to .wav (by deleting that .orig extension), and you've got the file you started with. but the new file is now 16 bit, 44.1 kHz (assuming those are the settings you chose in r8brain), which is the CD standard and you'll be good to go. r8brain takes a long time to process, depending on your computer, because it takes a lot of calculations to produce a high quality resampling job. that part is perfectly normal.