Singapore Video/Audio Conversion Services

Convert Video Tape or
Video File to DVD-Video in Singapore

DVD-Video Informations:

DVD-Video is a consumer video format used to store digital video on DVD discs, and is currently the dominant consumer video format in Asia, North America, Europe, and Australia. Discs using the DVD-Video specification require a DVD drive and an MPEG-2 decoder (e.g., a DVD player, or a computer DVD drive with a software DVD player). Commercial DVD movies are encoded using a combination MPEG-2 compressed video and audio of varying formats (often multi-channel formats as described below). Typically, the data rate for DVD movies ranges from 3 Mbit/s to 9.5 Mbit/s, and the bit rate is usually adaptive. It was first available for retail around March 26, 1997.

The DVD-Video specification was created by DVD Forum and can be obtained from DVD Format/Logo Licensing Corporation for a fee of $5,000. The specification is not publicly available and every subscriber must sign a non-disclosure agreement. Certain information in the DVD Book is proprietary and confidential.

To record moving pictures, DVD-Video uses either H.262/MPEG-2 Part 2 compression at up to 9.8 Mbit/s (9,800 kbit/s) or MPEG-1 Part 2 compression at up to 1.856 Mbit/s (1,856 kbit/s). DVD-Video supports video with a bit depth of 8-bits per color YCbCr with 4:2:0 chroma subsampling.

The following formats are allowed for H.262/MPEG-2 Part 2 video[9][better source needed]:

- At a display rate of 25 frames per second, interlaced (commonly used in regions with 50 Hz image scanning frequency):
720x576 pixels (same resolution as D-1)
704x576 pixels
352x576 pixels (same as the China Video Disc standard)
352x288 pixels

- At a display rate of 29.97 frames per second, interlaced (commonly used in regions with 60 Hz image scanning frequency):
720x480 pixels (same resolution as D-1)
704x480 pixels
352x480 pixels (same as the China Video Disc standard)
352x240 pixels

The following formats are allowed for MPEG-1 video:
352x288 pixels at 25 frame/s, progressive (Same as the VCD Standard)
352x240 pixels at 29.97 frame/s, progressive (Same as the VCD Standard)

Video with 4:3 frame aspect ratio is supported in all video modes. Widescreen video is supported only in D-1 resolutions.

The MPEG-1 Part 2 format does not support interlaced video. The H.262/MPEG-2 Part 2 format supports both interlaced and progressive-scan content. Content with a frame rate different from one of the rates shown above can be encoded to H.262/MPEG-2 Part 2 by using pulldown. This is most commonly used to encode 23.976 frame/s content for playback at 29.97 frame/s. Pulldown can be implemented directly while the disc is mastered, by actually encoding the data on the disc at 29.79 frames/s; however this practice is uncommon for most commercial film releases, which provide content optimized for display on progressive scan television sets.

Alternately, the content can be encoded on the disc itself at one of several alternate frame rates, and use flags that identify scanning type, field order and field repeating pattern. Such flags can be added in video stream by the H.262/MPEG-2 Part 2 encoder. A DVD player uses these flags to convert progressive content into interlaced video in real-time during playback, producing a signal suitable for interlaced TV sets. These flags also allow reproducing progressive content at their original, non-interlaced format when used with compatible DVD players and progressive-scan television sets.

Some DVD hardware or software players may play discs whose MPEG files do not conform to the above standards; commonly this is used to support discs authored with formats such as VCD and SVCD. While VCD and CVD video is supported by the DVD standard, neither SVCD video nor VCD, CVD, or SVCD audio is compatible with the DVD standard.

Some hardware players will also play DVD-ROMs or CD-ROMs containing "raw" MPEG video files; these are "unauthored" and lack the file and header structure that defines DVD-Video. Standard DVD-Video files contain extra information (such as the number of video tracks, chapters and links to extra features) that DVD players use to navigate the disc.

To preserve your precious video in the video tapes or video files, convert them to DVD-video. Call 65-90660631 for conversion service in Singapore.

Tangerine Associate Block 197 Rivervale Drive Singapore (next to Rivervale Mall) Mobile: 65-90660631