What are DVD-Audio discs and SACDs? | Main | December 2004 OLAC Newsletter

December 14, 2004

How to tell the difference between a CD-ROM and a DVD

Sometimes it's hard to tell whether a disc is a CD-ROM or a DVD, especially when the publisher gives no indication. Here's one way to tell when you can't tell any other way:

  1. Put disc in your computer and wait for it to load up.

  2. Open Windows Explorer. Find your CD/DVD drive (usually the D: drive) under "My Computer."

  3. Right-click on the CD/DVD drive icon. A menu will pop up.

  4. Choose Properties from the menu. This will open a window with technical information about the disc in the drive.

  5. Check the size on the Properties window. If it's under 700 MB, it's probably a CD-ROM. If it's over 700MB, it's almost certainly a DVD (a DVD can hold up to 4 GB of data, while a CD can only hold up to 700 MB).

Questions? Want to see this demonstrated? Ask Stacie.

Posted by trail001 at December 14, 2004 10:16 AM | Audio | Electronic Resources | Video

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