This might sound like a stupid question but, if I have a disc already recorded in MP3 and I re-record it also in MP3, do I double up the space available. What I mean is that I can get about 9 hours of recording on to a 700MB disc so, once having re-recorded it, would it in theory, be possible to get 18 hours? I'm not thinking about the quality of the sound, just the theory.
Pro tip
