Hey, I actually owned one of those as well! And yes I recall it's single speed slowness and long seeking times, and the strange moise it would make while seeking!
Aaaaand... the remote was not exclusive to Apple: Philips DCC (digital casette) players had the same remote only with different buttons: http://www.ebay.com/itm/PHILIPS-DCC-900-DIGITAL-COMPACT-CASSETTE-RECORDER-w-REMOTE-2-TAPES-BUNDLE-/331727570882
I know because we (my family) owned one of those as well! So we had two of those remotes in our house!
In fact, Philips also had a model very similar to the powercd player being able to play their cd-i multimedia discs on a tv... You couldn't connect that player to a pc since it missed the scsi port on the back. It was not sold very well even compared to other players of the not so succesful cd-i format... (which the Apple player could not play... altthough you could use it to directly watch photos on a compact disc on your TV via a composite connection!)
EDIT: Apperently the Apple cpuld play CD-i, missed that then ;-) And reading the other comments, yes there was a Kodak version as well! :-) http://www.icdia.co.uk/related/photocd/pcdplayers.html