JP1 Remotes

1. Device: Sony dvp cx985v
2. Type of device: DVD changer
3. Year: 2004
4. UEI Remote model: Atlas 5 device DVR
5. Do you have a JP1 cable? yes
6. Still have original remote? yes
7. Checked the file section? Checked Sony dvp-cx985v and Sony dvp-cx875p,neither had an eject code.
8. Checked Pronto file section (at R/C)? One of the files I checked had an eject code listed but it was actually the open/close code.
9. Partially working setup code? DVD/1533
10. Learning remote question?
Also checked here http://www.hifi-remote.com/sony/Sony_dvd.htm
Looking for the eject code.Original remote doesn't have,so I don't know if there is a code for it.

I'm not sure what the diffence is between "Open/Close" and "Eject" on a megachanger, but it looks like you've looked in all of the most likely places. I would wager that there is no such code.

I thought that might be the case.
"open/close" opens/closes the loading door and "eject" causes the selected disc to eject slightly,so you can grab it for removal.

Bite the bullet and make upgrades with every possible code (0-255) and try them out. Small chance that you will enter an irreversible screw-up code.