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170 Everything You Ever Wanted to Know About DVD<br />

• Testronic Labs (www.testroniclaboratories.com/, Burbank, CA), (818)<br />

845-3223,<br />

fax (818) 845-3236.<br />

• Toshiba (Japan). Testing services and test discs. Official DVD Verification<br />

Lab. �81-3-3457-2105, fax �81-3-5444-9202.<br />

• Victor (Japan). Testing services and test discs. Official DVD Verification<br />

Lab. �81-3-3289-2813, fax �81-45-450-1639.<br />

• WAMO (www.ivyhill-wms.com, USA). Testing services and test discs.<br />

Official DVD Forum verification lab. 1-570-383-3568,<br />

fax 1-570-383-7487.<br />

Also see “Other Production Tools” for tools to analyze and verify coded<br />

bitstreams, disc images, and DLTs.<br />

Can I Put DVD-Video Content on a CD-R or CD-RW?<br />

NOTE: This section refers to creating original DVD-Video content,<br />

not copying from DVD to CD. The latter is impractical, since it takes 7<br />

to 14 CDs to hold one side of a DVD. Also, most DVD movies are<br />

encrypted so that the files can’t be copied without special software.<br />

There are many advantages to creating a DVD-Video volume using an<br />

inexpensive recordable CD rather than an expensive recordable DVD. The<br />

resulting “cDVD” (also called a “miniDVD”) is perfect for testing and for<br />

short video programs. Unfortunately, you can put DVD-Video files on CD-R<br />

or CD-RW media, or even on pressed CD-ROM media, but almost no settop<br />

player can play the disc. There are a number of reasons DVD-Video<br />

players can’t play DVD-Video content from CD media:<br />

1. Checking for CD media is a fallback case after DVD checking for, at<br />

which point the players are no longer looking for DVD-Video content<br />

2. It’s simpler and cheaper for players to spin CDs at 1x speed rather<br />

than the 9x speed required for DVD-Video content<br />

3. Many players can’t read CD-R discs (see “Is CD-R compatible<br />

with DVD?” in <strong>Chapter</strong> 2, “DVD’s Relationship to Other Products and<br />

Technologies”).

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