DVD Devices

This section summarizes specific requirements for DVD devices.

The industry is currently involved in defining standards for DVD. Microsoft is working with the industry to define a command set for DVD. When this command set is adopted in the industry, support for this command set will be required for PC 97.

34. Compliant with all general storage device requirements

These are defined in the "System Requirements for Storage Peripherals" section earlier in this chapter.

Note Bus mastering for DVD-ROM is a requirement for PC 97.

35. Meets minimum compatibility requirements

At a minimum, the DVD device must be compatible with these formats to ensure that earlier media can be read by the DVD device:

• Logical formats: CD Red Book, Yellow Book, White Book, and Blue Book.
• Physical formats: CD-R2, CD-ROM, CD-Audio, and DVD-ROM.

36. Compliant with command sets for DVD

The device must be compliant with SFF 8020i v. 3.0 or higher for ATAPI DVD-ROM drivers. Specifications for SCSI or IEEE 1394 DVD-ROM drives are yet to be defined.

37. High-speed expansion bus

The DVD hardware must use a bus that supports high-speed transfer of multiple data types. Any DVD controller must be capable of sustained rates of 12 megabits per second at a minimum.

38. System supports PC 97 DVD playback requirements, if DVD drive support video discs

Systems that support video discs must be capable of properly decoding and displaying or playing the appropriate data streams. For information about the PC 97 required support for DVD playback, see the "Video Components" chapter in Part 4 of this guide.

39. File system accessible from the Windows operating system

The drive will support Universal Disk Format (UDF) as defined in the DVD Alliance specification.

40. Push-to-close design, if motorized capabilities are included

A motorized design is not required, but if it is implemented, the device must be designed so the user has three options to close the device when inserting a disc:

• Physically push on the bay
• Physically push the close button on the bay housing
• Select software-supported option to close the device

41. Defect management

The drive must support defect management that is transparent to the operating system according to industry standards.

42. Copy protection

The drive should support the copy protection of movie and software content.