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Some DVDs Don't Mount

  
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roback

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Since: Jan 23, 2005
Posts: 12



(Msg. 1) Posted: Sun Jan 08, 2006 12:55 pm
Post subject: Some DVDs Don't Mount
Archived from groups: comp>sys>mac>graphics (more info?)
I have a Mac G3 running 10.3.9 currently. I swapped out my CDRW with a
Pioneer DVR 106D DVRW. I burned a couple of DVDs at a friends house on
a Mac using Toast on his DVR 109D. Mounted fine on his machine. When I
got them home and tried to read on my DVR 106D it doesn't mount on
desktop not when I try on another Mac with a built in CDDVD Read only
drive. The media is Memorex 16X DVD+R. I was told this media was
backwards compatable with slower drives and it did work fine on my
friends. I have no burning software on my Mac as it is supposed to have
its own. I really need the data on these CDs. What can I do to get my
machine to mount them? BTW, I did put in one of my kids DVDs and it
mounted fine, so it is not the drive! And CDs also mount fine. I used
PatchBurn to get the Mac to recognize the drive but it is supported by
Apple and PatchBurn wasn't even necessary! BTW, I stuck these DVDs in
another iMac G3 I have and it did not read them either but did read the
other DVDs. Again armgument for not being the drive!

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calvin

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Since: Nov 07, 2004
Posts: 39



(Msg. 2) Posted: Sun Jan 08, 2006 11:34 pm
Post subject: Re: Some DVDs Don't Mount [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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Fred McKenzie

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Since: Jul 26, 2003
Posts: 383



(Msg. 3) Posted: Wed Jan 18, 2006 5:10 pm
Post subject: Re: Some DVDs Don't Mount [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
In article , Michael
Roback wrote:

> I have a Mac G3 running 10.3.9 currently. I swapped out my CDRW with a
> Pioneer DVR 106D DVRW. I burned a couple of DVDs at a friends house on
> a Mac using Toast on his DVR 109D. Mounted fine on his machine. When I
> got them home and tried to read on my DVR 106D it doesn't mount on
> desktop not when I try on another Mac with a built in CDDVD Read only
> drive.

Michael-

This topic comes up periodically, and I don't recall seeing a definitive answer.

One suggestion is that the problem is that your machine can't read dvd
PLUS R disks, but requires MINUS R. That disagrees with what I've read,
that after the DVD is burned, it no longer matters whether it was plus or
minus.

I recall reading a warning on a DVD recorder at a store, saying that some
machines can't read a disk if it was not properly "finished" after being
burned. I suspect this refers to partial burning, where the disk is left
open so more can be added later. Could this be true in your case?

If it is convenient, you might take a dvd MINUS R blank disk back to your
friend's and try burning the data again.

If any of the machines are portable, try connecting one that reads the
disk to yours via FireWire, and booting one of the machines in FireWire
T-mode (while holding down the T key).

Fred
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David C.

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Since: Oct 11, 2003
Posts: 1430



(Msg. 4) Posted: Wed Jan 18, 2006 10:55 pm
Post subject: Re: Some DVDs Don't Mount [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
fmmck DeleteThis @aol.com (Fred McKenzie) writes:
> This topic comes up periodically, and I don't recall seeing a
> definitive answer.
>
> One suggestion is that the problem is that your machine can't read dvd
> PLUS R disks, but requires MINUS R. That disagrees with what I've
> read, that after the DVD is burned, it no longer matters whether it
> was plus or minus.

It's not supposed to matter, but there are still DVD-ROM drives (and
burners) that have a problem reading some types/brands/speeds of media.

The CD world has similar issues. Although CD-R is generally compatible
with all CD-ROM drives, there are some that have problems with the
format, and there are some drives that work with some brands/colors of
CD-R media and not others.

-- David
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