Multi-Format Disk Recorder/Player

D-Stream is a multi-format disk recorder/player that is able to edit/playout/record video. Users can make files with SDI input signals or playout video files as SDI. Current VTR users can easily transfer to a file-based workflow with D-Stream’s user interface that is similar to VTR. Built-in sequence edit, CG mixing and sequence linkage to external NLE system will simplify the workflow and save user’s creating time.

Key Features

  • Multi-channel video recording and playback
  • Support various codecs
  • Video sequence editing
  • Support Sony 9-Pin control interface
  • CG playback and overlay on video

Multi-Channel Device

D-Stream can simultaneously record and playback from one device. It gives users the same effects as using multiple VCR, simplifies their workflow and increases utilization per device. Users can check the recording and playback of each currently operating channel in the user interface without a separate monitor.

Multi-channel video recording and playback

D-Stream supports 4 input/output channels and can configure various input and output. Users can use up to 2 recordings/2 playbacks or single recording/playback. This feature helps to reduce hardware cost and use it for multiple purposes.

Various input/output formats

D-Stream supports input/out formats such as 1080i, 1080p, 720p, NTSC, PAL, and etc.

10-bit recording/playback

D-Stream supports 10-bit process internally to support high definition video recording. Using codecs like Avid DNxHD, Apple ProRes 4444, users can record high definition video with minimized quality loss and file size increase the workflow.

16 audio channels

D-Stream can record/playback 16 audio channels and input/output to SDI embedded audio or AES/EBU as user’s setting.

Flexible Recording Methods

D-Stream can record and playback with accurate timecode using various actual codecs in broadcasting field.

Various video file formats

D-Stream supports recording/playback with various codecs (MPEG-2, DVCPro, XDCAM, AVC-Intra, DNxHD, ProRes, XAVC, H.264, etc). It allows users to use various video files without trans-coding and export them via these codecs which reduce creation time.

Preview output during recording/playback

Timecode/ countdown TC can be mixed into the original video and playout. Also, the signal input during recording is displayed via the selected SDI output. The playout preview is available via PC monitor and SDI output.

Diverse timecode types for recording

D-Stream can select the timecode among EMB LTC/EMB VITC/external LTC for recording. It supports drop/non-drop timecode.

Simultaneously creating proxy

D-Stream simultaneously records proxy simultaneously when recording original high definition video.

Editing during recording

Users can edit video from other NLE device while recording input video to a file so that users don’t need to wait for video recording to be completed. Recording files are saved on the network and can be used by NLE device or other file-based devices.

Real-time trans-coding playback

Video files of different video sizes and frame rates can be trans-coded and playout in real-time according to the playout video format.

Adapting to Linear Workflow

Current existing linear editor users with Sony 9-pin control can switch gradually to a file-based environment by replacing the tape-based VCR with D-Stream. Their original edit environment can be kept.

Playout list

Up to 2 channels of video can be played. Video, audio, CG and sequence can be listed in the playout list.

Timeline-based sequence editing

D-Stream supports timeline based editing function, so users can easily edit video track by placing video and audio in the timeline. Also, users can save the final edited project as a file, send it to an monitor or connect it to an external VTR for tape output.

Track control

Users can play, pause, rewind, fast-forward and bidirectionally playback at double speed up to 300%. Jog, shuttle, and slow motion controls are also available.

Editor or VTR control

D-Stream supports 9-pin control and can be used in linkage with an editor, VTR recorder or a player.

  1. D-Stream control in editor
  2. Control for output from D-Stream to VTR(D-Stream VTR)
  3. VTR to D-Stream recording control(VTR D-Stream)

The compatible editors are:

Built-in functions for linear editing

D-Stream supports following editing functions as below.

GPI control

START/STOP, NEXT, BACK, REC/STOP can be controlled by external GPI. For monitoring, PLAYING/RECORDING/GOING NEXT/GOING BACK are available.

Non-Linear Mastering Device

D-Stream can be used as a mastering device by importing the sequence processed from NLE. Mixing subtitles without a switcher/editor and rendering the final video using various codecs are also available.

Sharing sequence between D-Stream and NLE

Users can import video, audio, and CG editing data(XML) created in a NLE into the timeline of D-Stream in the form of a sequence. Also, edited sequence of D-Stream can be exported to NLE.

Exporting video file to NLE

The edited sequence of D-Stream can be exported as a video file with various codecs. D-Stream can create a file in a shorter time than the actual play time of the video even for the multi-track timeline rendering.

CG mixing and real-time playout

D-Stream can playout the scenes created by KarismaCG in real-time without rendering. In addition, scenes can be placed in the timeline and be mixed with the video. If the scene file is shared on the network, the edited data of KarismaCG is reflected immediately on the D-Stream, which is very convenient.

Real-time trans-coding playback

Video files of different video sizes and frame rates can be trans-coded and playout in real-time according to the playout video format.


D-Stream player

This model is capable of outputting up to 2 channels of video. It can be used as a video player or a manual output device.

D-Stream recorder/player

This model can playback and record video. You can set 2 channels for recording and playback. It supports timeline interface which allows sequence editing and sequence sharing with non-linear editing system.