I've asked this in another thread too, but will repeat it here for anyone who reads this and not the other:

I think it's a great idea, but I have another question. Will it work? Here's why I ask: I made a bootable Damn Small Linux CD and kept the CD open for a second session. I booted it, and used the CD writed in DSL to write some files to the CD as a second session. This all worked and the files were on the CD, along with the original DSL files. But the CD was no longer bootable. Apparently something in writing the second session changed the disc enough to affect how it boot. Does anyone know a way to write to the second session and still keep the disc bootable (and why it wasn't bootable in the above case)?