" Hey Mike, I am not sure if this is worth posting or not, but don't recall anything on it before (other then there being a problem that apple will fix). Many of the 1st rev G5's (and even some current models) have a problem with the CD door jamming and not going up all the way. (the G5's CD cover/door goes down when it opens. Although the CD door problem is rare overall (I never had the problem, nor did most owners although some mentioned it last fall) Brandon has the OEM drive which has the front tray edge/bezel removed so that is not the cause. If you're installing a new drive you purchased, remove the drive tray front bezel before installing it, otherwise the tray bezel hangs on the upper G5 case opening's edge when the tray is opened. But that is a different problem than what he is referring to.-Mike) The way apple repair techs fix this is just order a whole new case.
I however went and tore apart a case I have here for a project which had this problem and found out the problem is just two little pieces of plastic that were cast a little bit too long, to where the door rubs on them when it passes over. Trimming them down a little with a knife solved the problem.
Start to finish took about 20 minutes or so. Which could be a life saver to somebody who didn't want their machine swapped into another case. The part that i trimmed is circled, its just a little bit to tall (just a few thousandths actually).
Photos of the part can be seen here:
http://stuka.gograywolf.com/g5-cd-door/
-Brandon "

I've not had this problem with my early model G5, which now has a swapped in DVR-107D drive instead of the original DVR-106 model. As mentioned before, you have to remove the drive's front tray bezel to clear the G5's case opening. (Press out on the bottom of the drive tray bezel to clear the retaining tabs, then it slides up and off the tray.)

• Other World Computing G4/1.2GHz in (gigabit) G4/AGP (rated 9)
  
  (Full reviews of G4 and G3 upgrades w/apps/game tests, install info, etc. are linked on the CPU upgrades page. OC/CPU module articles are on the Systems page.)

(Warning - Overclocking may not be reliable and could lead to hardware failure or corrupted data.) You can find the full reports by searching the database selecting the indicated Mac model and upgrade card brand/type. If you've upgraded the CPU on your Mac, please post an entry in the database. Search the database for entries from most every upgradable Mac model *before* you buy. (Searchable by mac model/upgrade brand). For detailed reviews with performance tests and install tips, see the CPU Upgrades page.)

CDRW Drives:
• IDE LG GCE-8525B (52x32x52x) in B&W G3 (OS 9.2)
  (no itunes burn support. Illustrated CD drive install guide here covers B&W G3 and G4 towers up to the Digital Audio Model, as well as Beige G3 MT Macs)
  
  DVD+R/RW + DVD-R/RW Drives:
• Firewire (cased) Liteon LDW 851S used w/eMac (OS X 10.3)
  (using Patchburn II for Panther burn support.)
• IDE Pioneer DVR-A07XLA (DVR-107D) in G4/AGP (OS X 10.3)
  (native burn support in 10.3.3 and later. FAQ's DVD section has an OS 9.x burn support file. Illustrated CD drive install guide here covers B&W G3 and G4 towers up to the Digital Audio Model)
  
  Hard Drives:
• IDE Hitachi Travelstar 5K80 80GB in PowerBook G4 (OS X 10.3)
  (Reader FYI - PowerBook G4 Ti 15in. LCD illustrated Hard Drive install guide here
  Alum. PB G4 15in take-apart guide.
  Powerbook G4 12in LCD illustrated Hard Drive install guide here)
• IDE Hitachi Travelstar (5400rpm) 40GB in iBook (OS X 10.3)
  (FAQ's iBook section here has links to off-site iBook drive upgrade guides)
• IDE Seagate ST3120026A 120GB in iMac slot-loading (OS X)
  (FAQ's iMac section here has links to off-site iBook drive upgrade guides)

You can find full owner reports (latest shown first) by searching the database by drive/brand/interface/mac models (the latest reports are shown first in searches). For guides to installing CD/CDRW/DVD drives or Hard drives in many mac models, see the IDE Articles page. The Firewire articles page also has guides on case kits, installing drives, etc.
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