Won't mount/eject some CD's

For my situation (MAC PRO Quad-Core Intel Xeon “Nehalem” - OSX 10.5.7 - SuperDrive shipped with Mac Pro) I inserted a CD-R "1x-16x Compatible" which has some images on it. The disc is made by Imation. _Note, the disc works just fine in my wife's iBook G4 and my G4 tower with both running 10.4.11_.
After the disc didn't mount and it just spun for a few minutes I tried the following:
1 - Hit the eject key - nothing
2 - Using disk utility tried to eject - nothing
3 - Tried using the Terminal and the "drutil tray eject" command - nothing
4 - Tried using the Eject Discs AppleScript found here
http://tumbleseed.wordpress.com/products/eject-disks/
- nothing, said no ejectable media
5 - Tried to Restart from Apple menu - machine would not shut down, had to hold in the power button to get it to shut down.
6 - Held down the mouse button (wired mouse only - glad I keep one around) during start before the chime - worked
So,
1 - Is this a bug re OSX 10.5 and if so wouldn't if be fixed by 10.5.7?
2 - Is this a Finder bug?
3 - Is this unique to the Pro Mac and the Apple shipped SuperDrive?
What a pain!!!!!
Note: the SuperDrive has worked fine installing some new software and I've burned two DVD's with a few thousand images each.

For some reason it sounds like it's causing a kernel panic. It didn't show up on the desk top but it did in Disk Utility? That's strange.
Unless it's happening to more than that one disk, I'd have to agree with Apple. The disk is probably kind of buggy regardless if other machines can use it.
If you upgraded your OS using Software Update, you might try downloading the full Combo Update form Apple and reapply it from the desktop and see if that makes a difference. In the mean time I'd get all that data off to another working cd or dvd on a machine that reads that disk. Good luck.
http://www.apple.com/downloads/macosx/apple/macosx_updates/macosx1057comboupdate .html

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May I hop onto your thread as I have a similar problem.
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After completing the login dialogue in the past from any other mac it would give me a list of the G5, it's Hard disk, user directories and the two Firewire Drives. On selecting them the drive would mount onto the desktop as a network drive. This went well until monday when it became temperamental in the morning and after a few restarts and one successful mount it has not shown up since. If I come to the G5 via the Go > Connect to Server I get a dialogue "Could Not connect to the server because the name or password are incorrect". If I try to connect via the network icon in the side window of the finder window I get a network dialogue log in, I get a list of folders and drives but then when selecting the FH drive get an error message which relates to the alias to the G5 Server requiring deleting or fixing.
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Could this strange behavior be caused by minute differences in the size of the hole in the middle of the CD/DVD?
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yet
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2. Blank CDs mount and can be burned. And they play as well.
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The specs for this drive are hard to find, but this came up with some Google searching:
MATSHITA DVD-R UJ-835E:
Firmware Revision: GAN7
Interconnect: ATAPI
Burn Support: Yes (Apple Shipped/Supported)
Cache: 2048 KB
Reads DVD: Yes
CD-Write: -R, -RW
DVD-Write: -R, -RW, +R, +RW
Burn Underrun Protection CD: Yes
Burn Underrun Protection DVD: Yes
Write Strategies: CD-TAO, CD-SAO, DVD-DAO
Media: No
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bd

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Message was edited by: Nature1953

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Hi Eugene,
Did the same a while ago. My LaCie was dead.
Using Data Rescue X (from Prosoft I believe) was quite helpfull. You can retrieve data from your 'dead' LaCie and fix the drive once your valuable data is rescued...
http://www.prosoftengineering.com/products/datarescueinfo.php
Perhaps the 'testdrive' is all you need...
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Hi whatstin
See the lower part of > http://support.apple.com/kb/HT1317
+1. Shut down the computer.+
+2. Disconnect all devices and all other cables, except the keyboard and mouse cable(s).+
+3. Disconnect the computer from the power outlet and wait for 3 to 5 minutes.+
+4. Plug the computer back in and turn it on.+
+5. Reconnect the device(s) (one at a time if there is more than one) and test. Test with each port if you have more than one.+
If nothing then try a different USB cable.
If still nothing contact WD support @ http://support.wdc.com/?wdc_lang=en
Dennis

DVDs won't mount - discs ejecting

(Inadvertently posted to aluminum forum -- this belongs here.)
Searched and did not find exactly this problem in prior posts.
CDs still mount and play fine, but now all DVDs won't mount and are automatically ejected. I've looked previously at region settings, decided not to change, now can't even find region settings to verify I'm still set to 1. I don't really think it's a region problem though, as I'm pretty sure I didn't even try to change regions.
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Not quite sure what's wrong here, but let's see what System Profiler (Applications>Utilities) has to say about your drive.
Open up System Profiler, then click "Disc burning" in the left-hand column. Next to "Reads DVD" what does it say?
~Lyssa

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Hiya
I'm not a Mac newbie, but I am a FW newb. I've used USB 2.0 external drives, but I finally got a MacBook Pro so I thought I'd give FW 800 a go. I got a drive that's designed to work well with Mac's (Seagate) that does USB 2, FW 400 or FW 800. I'm using FW 800, which works fine, however once I eject the drive it won't mount again if I plug it in again to my Mac or my partner's unless I reboot the machine I'm trying to get it to mount on.
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I was having trouble with my FW 400 burner in SL.
Check out Ken Marks solution in this thread, it works well:
http://discussions.apple.com/thread.jspa?messageID=10190800&#10190800

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Is it a retail boxed version of Tiger or a restore copy that was included with another computer?
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Intel 20" Core Duo iMac - OS X 10.4.7 (occurred with 10.4.6 as well)
A number of times now, I've seen this scenario:
Insert a DVD into either the internal SuperDrive, or my external Mad Dog firewire drive. Disc spins up, . . that's it. Never mounts.
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It seems as though a scratched or otherwise un-readable DVD is what kicks off this process, but what I find odd is that regardless of which drive I first encounter the problem with, there is no "seeing" a DVD in either drive unless I re-start.
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Thanks!
Mark

I was having a problem with playing homebrew DVDs--they would load/mount OK, DVD player would start, but they wouldn't play without painful pauses and skips. I saw a piece advice somewhere about going to System Preferences, bring up the CDs & DVDs pref pane, and in the "When you insert a video DVD" preference click on the drop down menu and select "Ignore" (of all things--sounded like a weird choice to me!). After changing this setting to the recommendation my DVDs would play just fine, I just had to launch DVD Player myself rather than it automatically opening. Don't know if this would help your problem, but it is easy to do, so you might give it a try.
Francine
Francine
Schwieder

External Lacie drive won't mount

I have a older Lacie 160GB LaCie P3 extrenal drive that I can't mount. There never has been an issue with mounting it before in the method described below.
Here is what happened:
I turned the drive on but the firewire was not connected so I turned the Lacie drive off.
I connected the firewire and turned the Lacie on and the (partitioned) drive mounted on the desktop.
I was looking through the files when I got the error message that the drive was disconnected without being properly ejected which I didn't do.
I tried turning the Lacie drive off and on but it won't mount. I get the same flashing light on the Lacie drive that I had before connecting the firewire.
I tried Disk Utility but it can't see the drive.
I tried connecting to my laptop but it doesn't mount there either or show up in disk utility.
Questions:
Any idea how I can get it to mount?
Is there any risk of damage to the data by turning it on and off in an effort to get it to mount. I can hear it running.
Thank you

LIkely (very) your SATA card is fried inside the box for same.
External HD are very easy to diagnose. Bad USB cable (on commercial sold USB drives) almost doesn’t exist anymore.
External USB HD have 4 'parts' (not counting the HD internals)
1. USB cable (never an issue anymore, approaching 100%)
2. HD enclosure.....a plastic or metal box which cannot ever be an issue.
3. the HD itself
4. ....and last but not least is the epicenter of 'weak links' ,.....a SATA card/bridge that is connected to the HD inside the HD box, the size of a stick of gum, with SATA female on one side, and female USB on the other side, containing circuitry for data transfer between the SATA on the HD and to USB on the other.
While these bridge cards are better than they used to be, theyre still insanely unreliable.
There are literally probably MORE than 100,000 perfect external hard drives out there thrown away every year because people assume the "hard drive is bad" when really they could crack open the HD enclosure, remove the HD and put the good HD into a new enclosure.
See this video of the SATA CARD, its at 8:55min. http://www.youtube.com/watch?v=2pS_EDsP2KI
All conventional HD external are nearly 100% like the video above.
See pic below,..a (much larger) SATA card as found inside a typical HD enclosure ($20 ebay)
This is the nasty piece pictured below causing all the "crazy" activity seen on external HD, very odd behaviour, some have called it "haunted hard drive syndrome". Random ejects, random strange vanishing of the HD , especially in mid transfer of data.
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I updated from OS 10.3.2 to 10.3.9 using the Apple updater utility. After the update, external hard drives won't mount unless they are on when I boot up the computer.
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No. DVD's mount and work fine. Music cd's are the only ones that won't mount, and they don't get kicked out.They just sit in the machine. They are not damaged when I do get them out.

Won't mount/eject some CD's

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