David Curry wrote:
Paul M. Bucalo wrote:
On Thu, 2005-02-10 at 14:58 -0500, jim lawrence wrote:
Hi all,
I'm helping a friend out to install FC3. He burned the ISO images on
his notebook's CD-RW and wants to install FC3 onto a desktop he has.
The CD-ROM on the Desktop will not read the CD's. I had him check the
burn CD's with his notebook, and the cd's burned fine, so the Fedora
CD's are fine. What can I tell him about the CD-ROM he has in his
Desktop? Buy a new CD-RW ??
--
This topic comes up a lot. Probably always will.
CD-RW drives vary in the speed in which they can burn at. Herein lies
much of the problem when trying to read a burned disc in another ROM
device. Some CD-ROM drives are not able to read CD-R's burned at fast
speeds (like over 8X). For this reason, I burn my distro ISO's at 4X
even though my burners are able to burn much faster. Even then I am not
guaranteed to have a disc that can be read on all of my machines. I have
four burners and the four will not necessarily read a CD-R burned from
one of the others. This becomes a real pain for me when archiving. :0/
I'm betting he did them at 12X or faster. However, if he did burn them
at 4X and they work on someone else's machine, but not yours, you should
consider the possibility that you have the problem, not him.
HTH
Paul
I have the same problem on an older desktop machine, Jim. CDs were
burned at 4x on my FC2 system, but the CD-Rom on the Pentium class
(166Mhz-MMX) will not read the CDs. (The CD-ROM is supposedly a 4X
drive, but it dates to mid-1990s.) Based on Paul's input, I would try a
2X burn if I could get the machine to boot again.
Also remember that older CD ROM drives use a different color laser (old
used 670nM lasers, newer uses 630-650nM lasers). The "redder" lasers
(old) often have problems reading the darker media used on faster CD-Rs.
It isn't necessarily the speed at which it was burned, it's the speed
capacity of the MEDIA. Try burning using a media with a lighter color
at whatever speed you want. I'll bet it works.
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- Rick Stevens, Senior Systems Engineer rstevens@xxxxxxxxxxxxxxx -
- VitalStream, Inc. http://www.vitalstream.com -
- -
- Never test for an error condition you don't know how to handle. -
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