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Why did my SATA Superdrive disappear?

When I do diagnostics, the SuperDrive is no longer listed. It won't accept discs. I know that they can break, but are there software checks I should perform before pulling the drive?

(Also - what is a good peripheral/USB drive for my Mac?)

Edit (11/11/17)

First, under SATA/SATA Express, I see:

Block Image

Block Image

Under Disc Burning, there's this:

Block Image

(I seriously don't remember seeing the second drive the last few times I checked)

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

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crwdns2889612:0crwdne2889612:0 0
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Here's how to add images:

Adding images to an existing question

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Let see if you computer even sees it.

Go under the Apple to About this Mac

System Report

SATA/SATA Express

See if your computer sees the drive.

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Bob Young crwdns2934231:0crwdne2934231:0
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crwdns2936751:024crwdne2936751:0 0

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