aspi

Can anybody clear some confusion as to what are the terms associated with the CD burning. That is, what are ASPI drivers, why are they needed, nand what are the Windows Cd burning engine ASTI (or some thing like that if I am forgetting the correct name) and AMAPI?. And that also reminds me as to...

Nero Info tool shows that System ASPI is not installed. Nero ASPI is installed and working fine. I do not have any problem burning CD/DVD media but I would like to install system ASPI all the same. Where can I get it?