My friend gifted me his Sony BDP-BX18 Blu-ray player but the remote (RMT-B118A) was lost. The physical button on the front face to eject a disc is also missing but I can manually open/close the drawer with a slim screwdriver.

I have a Yamaha AV receiver, RX-V383, which came with the OEM Yamaha remote RAV532. There are buttons on the bottom for stop, play, chapter search etc. I was just chatting with Yamaha support and they say that these "are for performing playback operations when “USB” is selected as the input source, or control playback of the HDMI Control-compatible playback device." I am not currently at home (while typing this) but I think that I can change the HDMI input to USB. The Yamaha chat agent said that the RAV532 will only operate other Yamaha products but he didn't even know that the RAV532 had stop, play, chapter search buttons.

I can't afford to buy another remote at this time but I have an older URC-200 Automator that would probably work.