Here is my review of the Sony D-EJ1000, with some references to my other Sony PCDP (D-EJ721) and my rickety Panasonic SL-CT470:
The Sony D-EJ1000 won me over with its very slim design, a cast-metal lid, a backlit LCD remote (the LCD remote that comes with the D-EJ855 isn't backlit), and a nifty charging stand (the D-EJ855 lacks any provision whatsoever for a charging stand). It has the same switchable G-Protection as its predecessor, the D-EJ925 (which means that "1" is off, "2" is on - and there is still some skip protection even with the switch at the "1" position). It claims to read CD-R and CD-RW discs, as well. And in typical slim-Sony tradition, the body of the D-EJ1000 lacks a display and secondary controls [it does have the basic playback controls, as well as an LED that informs you that either the internal NH-14WM batteries are charging or the controls on the unit are locked (the Hold function)]. Maximum battery life is a claimed 41 hours with only the internal NiMH rechargeable batteries, or 115 hours with the internal rechargeable batteries plus two AA alkaline batteries placed in their external AA battery case. The supplied carrying pouch is designed to hold both the PCDP and the battery case at the same time, and is a big improvement over the "neveready" case that came with last year's D-EJ925, 825 and 72x series.
So much for the features, but how does the D-EJ1000 perform? Well, forget about using Japanese-designed earbuds with it; the headphone op-amp can't deliver enough current to drive those 16-ohm earbuds to anything above a midrange volume setting (you'll get clipping distortion above an 18/30 setting). And despite a rating of 5mW per channel at 16 ohms, the headphone op-amp really performs best with headphones with impedance rating between 32 and 120 ohms. And Sony seems to have set a higher gain with the D-EJ1000's headphone op-amp than it did with the op-amp of previous G-Protection Sony CD players; the D-EJ1000 seemed louder than my year-old D-EJ721 at any given volume control setting, though its maximum usable loudness still isn't quite as high as that of my Panasonic SL-CT470.
The sound quality from the D-EJ1000 is pretty much the same somewhat soft-edged (laid-back) sound as that of other Sony CD Walkman players. The extremities of the frequency spectrum are a bit recessed; the Panasonic SL-CT470's sound, by comparison, is more "forward" in its presentation (but one that may be a bit fatiguing to some listeners). Still, the D-EJ1000's sound quality is better than the flat, lifeless sound of the newest Panasonic portable CD players.
I tried the D-EJ1000's G-Protection feature, and so far it hasn't skipped on me. And I am unable to report on its battery life; my player's internal NiMH batteries are still running on their first charge.
Overall, the Sony D-EJ1000 is worth a listen. Is it really worth its $200 list price (in the U.S.)? It depends on which features are most important to you.
OTHER SONY CD WALKMAN PLAYERS (U.S.-MARKET) INTRODUCED IN 2002:
Besides the D-EJ1000 ($200) and the D-EJ855 ($150) that I mentioned in my review, the only new G-Protection Sony CD Walkman players marketed in the U.S. so far are the Sports model, the D-SJ301 ($100), several other Sports models (price not known at this point), the D-EJ758CK ($100) and the D-EJ756CK ($80). (It turned out that Sony is no longer replacing the D-EJ72x series or its D-EJ62x series without a car kit with a successor model; if you want to spend less than $100 on a Sony CD Walkman, you'll either have to settle for a Sports model, a model with a car kit or a model with the far less effective ESP MAX.)