Are bdp-015 and 010 not cross compatible? I've tried swapping the daughterboard from one drive to the other, nothing. Bdp-010 gave me 35888-2 error as original was 015. Took apart original drive - it will no longer accept discs - and all mechanical components were in good order, nothing broken or out of place. No idea where to start with troubleshooting the daughterboard as I cannot find replacment. Sorry if this is the wrong place for this question but that crappy preview question button on this site refused to work. Any ideas?