FYI, I just upped a device upgrade for the Sony CDP-CX400 which includes all three devices and all remote codes for the included RM-DX400 remote.
For posterity, I was pleased to learn that the three supported megachangers simply use different device codes. The OBCs remained the same for all!
Here they are:
1) sony12 device 17 and sony20 device 26/153
2) sony12 device 57 and sony20 device 26/161
3) sony12 device 81 and sony20 device 26/169
Hope this helps someone.
Stephen
Sony Mega Changer CDP-CX400 devices
Moderator: Moderators
Sony Mega Changer CDP-CX400 devices
URC-7800 begat URC-8910
Denon AVR-587, Sony KV-40XBR800 (there is no substitute), Onkyo DVP-302, AT&TiVo, JVC HR-610U, Sony CDP-CX400, SA 3100
Denon AVR-587, Sony KV-40XBR800 (there is no substitute), Onkyo DVP-302, AT&TiVo, JVC HR-610U, Sony CDP-CX400, SA 3100