I just ran into this too...won't read any cheap dvd-r's. Will read cd-r's and (what I think is) Ritek dvd-r. Otherwise you get slow BIOS(takes forever for Xecuter2 to come up under the logo) then dash with "cannot recognize disc error" [I get this with Xtreme 4x dvd-r] OR Xecuter2 never shows...waited ~2min. for it [get this with any Princo dvd-r].
(Addendum)
Almost forgot, this will always boot the disc I think is a Ritek but it crashes sometimes...the good ol' "There is something wrong the disc you are using...it may be dirty or scratched". Memorex 24x cd-r's always boot and run flawlessly.
Bought the box new yesterday (12/14/03) in Delaware, USA.
Manufacture plant code is 05. (Piss me off, got a Sammy in a box with 05 two weeks ago.)
Here's the vitals since no one posted yet.
New Philips DVD-Rom Drive:
Model #: VAD6035/21
Customer Part #: X00624-005
Factory Code: 8VU
Mfg. Date: W334 - August - 2003
If you're looking at the laser from the front of the XBox, there are 2 pots on the PCB behind the lens. (gonna try to ascii it here):
___ ___
| P1| | P2|
----------------------------------
| |
| LENS |
| |
----------------------------------
Front of XBox
Measurements:
P1 = 551 Ohms
P2 = 988 Ohms
If I knew which pot to try, I'd go for it...most likely we can deduce which one it is if someone out there can give readings from the old Philips pots.
LOL, ascii never works on message boards...but you should get the idea.
This post has been edited by barracuda: Dec 15 2003, 11:36 PM