I remember having a burning program that would let you “append” to a CD-R somehow, which took care of 80% of what I would have needed cd-rw for anyway.
I think that was DirectCD. Nice thing about it is that you'd never get buffer underruns for some reason. Can't use it for cd audio of course, but yes for mp3s!
DirectCD, that's a name I'd nit heard in many years...
Multi-session the tech was called. Though marketed by vendors under different names.
Windows XP also supported this natively, i.e. track at once rather than disc at once behaviour.