I wasted a few CDR's trying to make a bootable snapshot CDROM using Nero 
on Windows. I found a combination that works. Hopefully this will save 
someone else some CDR's.

Obvious details on how to burn a CDR with Nero is assumed. Focus is on 
the settings that resulted in a bootable CDR.

- Start a new project for CD-ROM (boot)
- Boot TAB, choose "Image File" and locate your boot-big.fs file
- Check  mark  "Enable expert settings (for advance users only!)"
  - For "Kind of Emulation:" choose "Floppy Emulation 2.88MB"
  - "Boot Message:" type "NetBSD Boot Loader" or whatever you want
  - "Load Segment of Sectors (hex!):" type "07C0" without the quotes
  - "Number of Load Sectors:" enter "1" without the quotes

- ISO TAB
  - ISO Level 2
  - Mode 1
  - ISO 9660
  - Check Joliet
  - Mark all three checkboxes under "Relax ISO Restrictions"
     - Allow path depth of more than 8 directories
     - Allow more than 255 characters in path
     - Do not add ";1" ISO file version extension

If someone could add this to the NetBSD web site docs, that would be 
helpful.

Regards,
Thomas