BIOS Boot Sector. Disorder?

Hello,

My questions concern the CDROM of which my computer has two. In Device
Manager they are listed as an Asus and an LGCombo. The former being the
older installation and ordered first.

In the BIOS Boot Sector I observe that the LGCombo is shown.

I have done many format/installs using my OEM (hologram) WinME CD. I have
used both the Asus and the LGCombo for setup purposes. On the last occasion
I used the latter.

1. Is the CDROM order in Device Manager alphabetical?

2. Are the BIOS settings changed by any activity of the user other than the
direct?

3. What significance has the BIOS boot selection of CDROM?

4. Is the choice of 'Auto insert notification', or not, of any relevance in
terms of the BIOS CDROM selection?

Thank-you.

Ben.