I need to do actually two things. The first one is, as the title says, split a very long house set (say 5 hours) into tracks, but I want them gapless. The set is in mp3 format, which as far as I know doesn't support gapless tracks. So I need to know in what format to convert the split tracks and what options to use with ffmpeg.
The second thing I need to do is to burn those tracks on a CDDA, again gapless. Actually I will be more happy to tell the burning software to a burn a whole .mp3 file that exactly fits the disc (1:20:00) and then by using some TOC file to refer to the tracks by their offsets, thus eliminating any distortions or losing of information.