Barry Gershenfeld wrote:
Last night I spent a couple of hours muttering about incompatible
changes in K3b from Fedora 3 to Centos 5.1 that caused me to waste a
couple of DVD blanks...
More investigation shows that my NEC ND-3550A CD/DVD reader/writer
seems to have lost the ability to _read_ anything. But it still
writes. I don't understand this. I thought that there was only one
read/write head.
I wonder if going back to Fedora 3 would magically cure it?
Try it under Knoppix or DSL or whatever...
If it can boot off a CDROM/DVD then it can read.
But as far as the actual drive is concerned, the laser is the
illumination source with a detector in the same optical assembly. The
detector helps guide the laser over the guide track and is part of a
servo loop. However, the decoder circuitry downstream of the detector
can fail causing an inability to read even though you can still burn.
Gus
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