QUOTE (oravla @ Oct 13 2009, 18:40)

The thing that concerns me is that the price difference must come from somewhere and the technical specs of those cheap players seem always incomplete, thus hard to trust.
The problem is that as consumers we cannot always tell where that price difference comes from. Past a certain point it's mostly marketing and engineers claiming solutions to problems that nobody honestly demonstrated were actual problems in the first place.
To address you question about cheaper brand name devices. First, I don't think I'd ever buy a CD player ever again. DVD players are easy to find, inexpensive, and can play CDs. So just buy a DVD player.
Second, knowing the exact DAC chip being used is mostly useless marketing information. Everything around the DAC is very important and no consumer knows about all this circuitry. Beyond this, the difference between a "low-end" DAC chip and "high-end" DAC chip is unknown to consumers. I once asked an A/V equipment engineer why they put one type of DAC chip in their less expensive devices and a branded (Burr Brown?) DAC chip in their most expensive models. His answer? "$3." And marketing of course.
Finally, I agree with you that you should avoid the really cheap DVD players. In my experience the no name brand stuff (e.g. Cyber-Power!) tends to be cheaply built, have trouble playing a wide variety of discs, and fail quickly. Based on other experiences I also avoid the really cheap DVD players from even name brands. I had a Samsung Player that had trouble playing even rented DVDs.
I've got one of these from Sony - Sony
DVP-NS77H. It works well, has lasted over a year, and plays DVD-RWs, DVDs, DVD+Rs, and CD-RWs without issue. The 1080I/P upconvert also works very well. I picked it up at a local sale for around $75. So you can spend a lot less than that Denon player and still get a decent product.
So if you are spending $ <$50 (USA MSRP) on a DVD player I would probably hesitate. But for $75 - $100, that would be fine. Just make sure it has all the features (e.g. upconvert, HDMI, optical out) that you want. As much as Sony's philosophies bother me, I've had good experiences with Sony products.
Also keep in mind that inexpensive Blu-ray is just around the corner. Sony already sells a $200 Blu ray player.
Hope this helps.