If they are factory disks you "should" be able to read them.

If they are burned disks you "may" be able to read them in
a burner drive. (Or even "most" CD-ROM drives.)

If they are burned disks, you might want to try a different media
manufacturer, or burn at a "reduced speed" as a test.  Not all drives
"like" all the different media manufacturers, and sometimes CD-R
disks are not marked with the maximum speed. The CD burner drive
can NOT read the disk and pick the speed for you. The ATIP info
groove on a CD-R NEVER had this type of info.
(DVDs DO have this info and set your burner for you.)

If you make a disk special for testing, be sure to record only one
session AND close (finalize) the disk to help eliminate some of
the other causes of this problem.

                                          Rick Glazier

From: "Bill"
>    I have a cd rom drive and a cd burner.  I have always noticed a slight
> depression in the center of the drive tray that would accommodate a mini CD
> disk.  I now have several mini CD rom data disks, but notice that they
> cannot be read from Windows XP explorer.  Please advise how these disks can
> be read and if not, I wonder why the drives have a depression in the tray
> for holding them.   Thank you, William Patton

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