This article is from the CD-Recordable FAQ, by Andy McFadden (firstname.lastname@example.org) with numerous contributions by others.
There are a few of possibilities, some software and some hardware.
It may be that the system is looking at the disc, not finding a TOC (table
of contents), and ejecting it as useless. One way to tell the difference
between the operating system rejecting the CD and the drive rejecting the
CD is to unplug the SCSI or IDE cable from the back of the CD recorder
before inserting the disc.
If the drive pauses for a little while before ejecting, it may be rejecting
the media. On some units you get a blinking warning light instead. If
this is happening, try a different brand of media.
If the problem is the operating system, you probably need to disable
certain features. Under Win95, disable auto insertion for all CD-ROM
devices (see section (4-1)). One user found that reinstalling Win95
helped. On the Mac, you may just need more recent drivers. On a Solaris
system, remove the recorder (probably the "cdrom" entry) from
If that doesn't work, make sure the CD-R drive is perfectly level.
Apparently some older (1996-ish) units were sensitive to being tilted at
an angle. Some users have had trouble when a CD-R has been on for a while
and has overheated, so if you only have trouble when the machine has been
powered on for a while, try putting a small fan above the unit to blow
air over it.
With some drives, improper SCSI termination can cause this behavior.
For the Yamaha CDR-200/CDR-400, this may be a sign that the drive has
broken down and needs to be replaced. See section (5-1-1).
If nothing helps, there's a strong possibility that the drive is mis-
aligned and needs to be serviced. This has been known to happen to drives
One user with a caddy-based drive reported problems when using the wrong
type of caddy. It has to be a Sony-type caddy, which is the kind most
commonly found in stores.