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I got here because of an old Q&amp;A from weed that came up on Google (<a href="https://www.experts-exchange.com/questions/11372297/DVD-drive-to-new-G3.html" rel="ugc">https://www.experts-exchange.com/questions/11372297/DVD-drive-to-new-G3.html</a>).<br />
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I am receiving the same Hardware missing message (21) from Apple DVD Player on my blue + white G3. &nbsp;48 hours ago I could watch DVDs on my G3. &nbsp;I just updated to OS9.1 from OS9.0.4 using a Powerbook G4 Install CD (which I was told by guru roommate would have no conflicts). &nbsp;I have since bounced around from OS8.5.1 to 9.0.4 to 9.1 again, and worked with Quicktime versions 3.x, 4.12, 5.0.2, and now 6.0. &nbsp;Even back in near original configurations it won't play a DVD, it does recognize it.<br />
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Everything else is working great (after 24 hours of extension replacement). &nbsp;Apple System Profiler even says that the decoder hardware and CD-DVD ROM drive are in place, so I'm hoping the decoder didn't get fried.<br />
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Can I blame the roommate/powerbook thing or is there an insidious extention causing a hardware error message?
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I got here because of an old Q&A from weed that came up on Google (http://www.experts-exchange.com/macintosh/Q_11372297.html).

I am receiving the same Hardware missing message (21) from Apple DVD Player on my blue + white G3.  48 hours ago I could watch DVDs on my G3.  I just updated to OS9.1 from OS9.0.4 using a Powerbook G4 Install CD (which I was told by guru roommate would have no conflicts).  I have since bounced around from OS8.5.1 to 9.0.4 to 9.1 again, and worked with Quicktime versions 3.x, 4.12, 5.0.2, and now 6.0.  Even back in near original configurations it won't play a DVD, it does recognize it.

Everything else is working great (after 24 hours of extension replacement).  Apple System Profiler even says that the decoder hardware and CD-DVD ROM drive are in place, so I'm hoping the decoder didn't get fried.

Can I blame the roommate/powerbook thing or is there an insidious extention causing a hardware error message?

Updating System Software, lost DVD Hardware

All of Apple's hardware is produced solely by Apple Inc., who determines internal systems, designs, and prices. Apple buys certain components wholesale from third-party manufacturers. The current Mac product family uses Intel x86-64 processors. All Mac models ship with at least 1 GB RAM as standard. Current Mac computers use ATI Radeon or nVidia GeForce graphics cards and include a dual-function DVD and CD burner, called the SuperDrive. Current Apple hardware includes the iPad, iPhone, iMac, Mac Pro, Macbook, iPod and Apple TV. Discontinued hardware includes the Apple I, Apple II, and the Apple III, the Lisa, the Newton, the Quadra, Performa, Centris, Macintosh II and LC series, the Power Macintosh, iBooks and the MacBook.

Apple Hardware

Apple's early computers ran on a variety of operating systems, including a Pascal version and one based on CP/M, before releasing its ProDOS with the advent of its 16-bit computer. With the release of the Lisa, which had its own OS, Apple and computing entered the graphical age; it was followed by the Macintosh, which offered a series of "System" operating systems. Other Mac operating systems included PowerPC until Apple acquired NeXT and folded it into the Mac OS. Current operating systems for Apple devices are Mac OS-X and iOS.