Home Discussion Topics Dictionary Almanac

Signup Login

CDVD

Overview

cDVD discs, sometimes called mini-DVD discs as well, are regular CDs that contain MPEG-video structured in accordance with the DVD-Video specifications (namely, a VIDEO_TS directory containing properly-authored IFO/BUP and VOB files). Such discs must be written in the so-called «Mode 1», which is compatible with both the ISO-9660 and UDF 1.02 filesystems, and therefore limits the amount of data that can be stored on an 80-minute CD to 700 MiB.

Discussion

Ask a question about 'CDVD'

Start a new discussion about 'CDVD'

Answer questions from other users

Full Discussion Forum

Encyclopedia

cDVD discs, sometimes called mini-DVD discs as well, are regular CDs that contain MPEG-video structured in accordance with the DVD-Video specifications (namely, a VIDEO_TS directory containing properly-authored IFO/BUP and VOB files). Such discs must be written in the so-called «Mode 1», which is compatible with both the ISO-9660 and UDF 1.02 filesystems, and therefore limits the amount of data that can be stored on an 80-minute CD to 700 MiB. By using non-standard resolutions, long GOPs, more B-frames, and high-compression
quantization matrices, it's possible to store up to 2 hours of video
with audio and subtitles on a regular 80-minute CD. Until 2003, few
standalone DVD-players had drives capable of spinning a CD at the 8X
rate needed to keep up with the maximum data stream allowed by the
DVD-Video specifications, but today, many models contain drives
similar to those used on desktop computers, and firmware more
versatile as well, so that the proper playback of compact DVDs is
often supported, but rarely documented (especially in North America and Europe).

CDVD

See also