(I've played dozens of DVDs and CDs in the drive without any problems since I got the computer, until about 2 weeks ago.)
I have an HP Pavilion a710n PC with Windows XP Home Edition SP 2.
The DVD-ROM drive is a Samsung SD-616E, according to the Device Manager.
A couple of weeks ago, I tried playing a DVD in it. I got the ''Please insert disk into Drive E'' error message, so I figured that the drive couldn't read the disk because it was very scratched up (my regular DVD player did play it, however).
I didn't try any other disks, and I don't recall using the DVD-ROM drive until today.
Today, I tried to watch a perfectly fine, unscratched DVD and got the same error. I tried it with CD-ROMs, and the same thing happened. The CD-ROMs could be read in the PC's CD-RW drive, however.
I tried reinstalling the DVD-ROM driver, but that didn't help.
Any ideas?
(It's only been 10 months since I bought this computer. It would be absolutely impractical to send it in for service or replacement, since I have no way of backing up everything I have on it, and I need to use it all the time.)

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