Which statement best describes MPEG2 and MPEG4 codecs?

Which statement best describes MPEG2 and MPEG4 codecs?

• A. They are audio-only formats
• B. They are color space definitions
• C. They are streaming protocols
• D. They are widely used audio/video compression standards

Answer: (D)

MPEG-2 and MPEG-4 are about how media data is compressed for storage and transmission. They specify the methods for encoding both video and audio so large files can be reduced in size while keeping acceptable quality. That makes them widely used across DVDs, broadcast, Blu-ray, and online streaming. They aren’t audio-only formats, nor color space definitions, nor streaming protocols themselves; they are compression standards that enable efficient media delivery. Therefore, they’re best described as widely used audio/video compression standards.

MPEG-2 and MPEG-4 are about how media data is compressed for storage and transmission. They specify the methods for encoding both video and audio so large files can be reduced in size while keeping acceptable quality. That makes them widely used across DVDs, broadcast, Blu-ray, and online streaming. They aren’t audio-only formats, nor color space definitions, nor streaming protocols themselves; they are compression standards that enable efficient media delivery. Therefore, they’re best described as widely used audio/video compression standards.