I'm using a Sony DVD player, too. Got it for $5 at the local charity shop benefitting spay and neuter programs
for feral cats.

It came without remote, but the Dollar Tree store had a universal
remote control that could be programmed for it, at ...A Dollar. So it cost me six bucks.
It sounds fine. A front panel display is a MUST. I have other DVD players around, that don't have one,
and couldn't use them in the audio system. This Sony has one, and the ability to select tracks directly
via keypad on the remote. There is enough of a time delay between initiation and start of play to do it,
or I can select a track at disc load, and it will advance there when the disc has been initiated. It also
has controls on the front panel (but no keypad), which some units. requiring a remote, lack.
It actually sounds close enough to the Philips/Magnavox CD player that used to be in the system before
trying out the Sony DVD player, that I haven't put back the Magnavox. Source limitations inherent in the
Red Book CD format may have something to do with that, but what is keeping it there is being able to
play music DVDs and DVD-A in it, without yet another piece of equipment competing for inputs on the
preamplifier.