I'm new with CD-RW recording (not CD-R, just CD-RW). Can anyone explain how it works? I have some questions:
 Do I need to format, or clean the CDRW before first use? And after the first use?
 The laser power is different from burning a CDR to CDRW. Which one is the most powerfull?
 Since the laser power is different, how do I tell the software that it's going to burn a CDRW instead of a CDR, so the software can adjust the laser power of the recorder?
 If I have a iso or bin image, I can burn it to a CDRW to test if the software (recorded on media) works, and then make a final burn to a CDR. Can I then re-use the CDRW? Making a format or something or what?
 How to clean a CDRW to enable it for a new "print"?
Thank you for you'r attention!