I bought one of these recorders today (found an open box one at Best Buy and used the 30% off coupon to get it for $69.99 plus tax). Being the curious and experimental type, the *first* thing I did when I got home was to stick in a DVD-RW disc (even though this unit supports DVD+R/W). Walter Chan had posted a link to the Zoran Chipset for this unit and it says it supports both DVD-R/W and DVD+R/W. I figured I'd try see if it was "true" (and not disabled in software).
Sure enough, the DVD-RW was recognized. It let me format it (in Video only mode, NOT VR), and let me record. When I ejected it the machine asked me if I wanted to finalize it. That worked too.
So the box and unit state my recorder was Manufactured April 2005 with a Bios 05.56/090N. It is also a CH-DVR1600ZU. I noticed that Target also sells this player and it is Manufactured in May with a different Bios version listed (didn't take a note of it though). So I'm not sure if all DVR 1600 players are "Dual Format" or not. But I can attest that mine 100% is.
It's weird because there are apparently two versions of the Ilo DVR05 as well ( iLO DVDR05ZU and iLO DVDR05MU). And since we know it's the same player, I guess that makes sense.
What a deal! A Dual-Format Recorder for $99.99 (or $69.99 or less if you find an Open Box one at Best Buy with coupon).
Let's just see how long it lasts.