Naim CDI : Very nice, and my first dip of the toe into the digital world.
Sony DVP-9000ES : Initially bought for movie use, but when seriously listened to on music, preferred it overall to the CDI. Now used mainly for movies again.
Sony DVP-NS9100ES : Used primarily for 2 channel CD, and 2 channel/multi-channel SACD through it's iLink interface to my ES digital amp. Whether it is the player or the iLink interface in combo with a pure digital amp, but I've yet to hear anything I feel is better, regardless of cost, and have no plans to replace it.
Sony DVP-NS51P : Purchased as a backup for a second system. The sound through the analogue outs is OK, but when used as a transport into the digital amp, it rivals the DVP-9000ES performance wise.
Next adventure will be streaming from a Hard Drive......
Probably Mac/Airport into digital amp, but in the meantime....
Sony RDR-HXD970 : Used for time-shifting SD TV. This handy machine has a recordable DVD drive, plus 250Gb HD upon which, one can record music - yet to experiment but very, very nice...
Jon