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Product Code: GV-T2

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Grass Valley T2
Suggested List Price: £+VAT
HD iDDR
This product has been replaced with updated models.
Click here for more information.

Grass Valley T2
Suggested List Price: £ +VAT
HD iDDR
This product has been replaced with updated models.
Click here for more information.
Grass Valley T2
Suggested List Price: £+VAT
HD iDDR
This product has been replaced with updated models.
Click here for more information.

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Special Offer

 
Offer Ends: 1st January 1970

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Grass Valley T2

HD iDDR
Suggested List Price: £ Click Here +VAT

T2 List price: £8700.00+VAT

T2 RAID List Price: £10750.00+VAT

T2 SSD List Price: £12750.00+VAT

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Product Review

Technology Guides

Guide to Video Recorders

This guide covers recorders designed for the studio, desktop and location shoots. It does not look at field or camera-mounted solutions such as the Blackmagic Design Hyperdeck Shuttle or Datavideo DN-60A.

 

External recorders, what's the point?

  1. Recording live productions from the switcher
  2. Recording feeds from studio or remote cameras
  3. Recording very long shots, lasting several hours
  4. Creating digital recordings from analogue cameras
  5. Embedding audio into camera feeds

 

Connectors

Recorders are available with a variety of inputs, from S-Video, composite video and firewire to HDMI and HD-SDI. While it is useful (and slightly less messy) for recorders to connect using the same connection as the source, low-cost signal converters can overcome any analogue / digital or HDMI / SDI miss-match.
Arguably more important than connections are three key factors: the data rate, the recording format, and the digital media used to record onto.

 

Format

In a perfect world, recorders would capture in a format that is:

  1. High quality
  2. Edit-friendly
  3. Broadcast-ready
  4. Easily optimised for streaming
  5. Good for archiving

Needless to say, no single format answers to all these requirements. Even at the BBC's brand new facilities at Salford, content in post production is available to editors as ProRes 422 while archives are AVC Intra100. Content streamed over the internet it tends to be encoded to H.264; over broadcast masts as MPEG-TS.

So format capture compromises are inevitable. Our current recorders use the following codecs:

Codec Overview Comment
AVC Intra100 Used natively by Panasonic camcorders.
4:2:2 sampling at 100Mb/s. Supported by most editing software platforms and broadcast hardware.
Good camera to post workflow and simple to edit. 2K and 4K options not yet available.
ProRes Intermediate codec, supports 4K, 2K, HD & SD resolutions and up-to 330Mb/s. Used by some ARRI cameras. Supported by Mac edit software, partly supported by Windows tools and broadcast hardware. Very popular codec for Apple enthusiasts
HQX Cross-platform codec with alpha channel support. Data rates from 45Mb/s to 600Mb/s. New open version of Grass Valley's HQ codec promises excellent results at all bitrates and resolutions up-to 4K Also offers Alpha channel support.
M2T MPEG-2 based codec with native software (though not FCP) and extensive hardware support. Records full HD up-to 100Mb/s at 4:2:2. Reliable and proven - an HD codec that still has legs.
DV The original standard definition digital format. Strictly for SD productions.
DNxHD Avid's Intermediate format that records at 36, 145 or 220Mb/s. Licensed to a number of companies including Ikegami, FilmLight, Harris, Blackmagic, JVC, Seachange, EVS. High quality HD results, favoured by Avid editors. Widely compatible with other software when files are recorded as a Quicktime container.
DVCPRO HD DV-based codec, records up-to 100 Mb/s. Maximum 1440x1080. Solid broadcast credentials and easy to edit
XDCAM XDCAM Sony's very popular tapeless format with MPEG-2 and MPEG4 options. Choose 50Mb/s for HD broadcast applications

 

Conclusions

  • ProRes is deservedly popular. However, if the workgroup is a mixed OS environment (Windows, Linux and Apple), ProRes has limitations.
  • Where all editors exclusively use Avid, DNxHD is a solid option
  • AVC-Intra is a great HD choice: 're-wrapping' for FCP is very fast; native editing in EDIUS, Premiere, and Avid
  • M2T is a safe choice but should be transcoded if rendering multiple generations.
  • Recording in, or transcoding to the new HQX is a great choice for multi-OS workgroups

 

Data Rate

In order to manage storage costs, maintain editing speed and yet deliver quality content, there has to be a compromise. Recording an HDTV programme at 300Mb/s, for example, makes little sense unless the programme is likely to be displayed on the big screen with lots of grading, compositing or chroma key.

On a 240GB hard drive, around 4 hours of 100Mb/s content can be recorded. Uncompressed, the same drive can capture approximately 25 minutes. For most technicians, space may not be the big issue; handling the large files in post production will be more of an issue, especially if transcoding into an intermediate format is needed.

 

Media

Recorders capture to a variety of media

Spinning hard drives: Low cost and high capacity
RAID arrays High capacity and safe
Solid state disks Super fast, compact but costly
Memory cards* Flexible, smaller and costly

Notes

  • Certain memory card-based recorders feature the ability to offload content directly to external hard disks giving greatly increased capacity at low cost.
  • SSD advisory: SSD is relatively new technology. It is very fast but needs periodic optimization to maintain performance. It is also currently expensive at between 4-6 times more costly than 2.5" spinning drives.

 

The Products

Panasonic | Datavideo | Grass Valley | Blackmagic Design | VITEC

Panasonic
Model Codec Media I/O Other Features
AG-HPD24 AVC-Intra up-to 100Mb/s
plus DVCPRO50, DVCPRO and DV
2 x P2 slots: 128 minutes recording at highest setting on 2 64GB cards HD-SDI
Timecode
XLR
HDMI out
Phono out
Variable frame rates
3D Support (using 2 units)
RS-422 control
USB 3.0 data offload
AJ-HPD2500 AVC-Intra up-to 100Mb/s
plus DVCPRO50, DVCPRO and DV
6 x P2 slots: 360 minutes recording at highest setting on 2 64GB cards HD-SDI
Timecode
XLR
AES/EBU
Analogue Video
Reference Clip list playback
Waveform display
Variable frame rates
RS-422 / 232 control
Data offload via USB 2 / eSATA / Ethernet
AJ-HPM200E AVC-Intra up-to 100Mb/s
plus DVCPRO50, DVCPRO and DV
6 x P2 slots: 360 minutes recording at highest setting on 2 64GB cards HD-SDI
Timecode
XLR
AES/EBU
Reference
Clip list playback
Waveform display
Variable frame rates
RS-422 control
Data offload via USB 2 / eSATA / Ethernet
AG-HPG20EJ AVC-Intra up-to 100Mb/s
plus DVCPRO50, DVCPRO and DV
2 x P2 slots: 128 minutes recording at highest setting on 2 64GB cards HD-SDI
Phono out
Composite video out
Firewire
Clip playback
Variable frame rates
Data offload via USB 2

 

Datavideo
Model Codec Media I/O Other Features
DN-200 HDV (m2t) plus DV (avi, / mov / mxf

 

Built-in 320GB hard drive for 24 hours DV recording Composite video in
Firewire
Phono
GPI
AV out
RS-232
Timecode
8 secs pre-record buffer
Connects to computer via firewire
DN-600 HDV (m2t) plus DV (avi, / mov / mxf Standard 2.5-inch hard drive in caddy Composite video
Component video
Firewire
GPI
XLR
Phono
RS-232
Timecode
Connects to computer via firewire; plus data offload from caddy via USB 2.0
8 secs pre-record buffer
DN-700 HDV (m2t) plus DV (avi, / mov / mxf Standard 2.5-inch hard drive in caddy Composite video
Component video
Firewire
GPI
XLR
Phono
RS-232
Timecode
1U Rackmountable
Connects to computer via firewire; plus data offload from caddy via USB 2.0
8 secs pre-record buffer
HDR-45 M2t (MPEG-2)
SD from 5Mb/s 4:2:0
HD up-to 100Mb/s 4:2:2
Standard 2.5-inch hard drive in caddy HD- SDI
HDMI out
Firewire
XLR
RS-232 / 422
GPI
HD-SDI loop thru
Connects to computer via firewire; plus data offload from caddy via USB 2.0
HDR-55 M2t (MPEG-2)
SD from 5Mb/s 4:2:0
HD up-to 100Mb/s 4:2:2
Standard 2.5-inch hard drive in caddy HD- SDI
HDMI out
Firewire
XLR
RS-232 / 422
GPI
HD-SDI loop thru
1U rackmountable
Connects to computer via firewire; plus data offload from caddy via USB 2.0

 

Grass Valley
Model Codec Media I/O Other Features

T2

Records HQ (4:2:2) up-to 200Mb/s

Supports HQ AVI,
MPEG-2, QuickTime, WMV, JPEG, TIFF, TARGA, and BMP.
Options for P2, XDCAM, ProRes444 and uncompressed

2 x 320GB drives

OR RAID 10 4 x 320GB

OR 2 x 160GB SSD

HD-SDI
Component video
Composite video
DVI-I
XLR
AES/EBU
Embedded Audio
RS-422
GPI
Reference
Timecode
Firewire
HD-SDI loop thru
Plays out two channels
Records one channel
Stereoscopic 3D support
Clip editing
Clip list playback
Media transfer and import over ethernet, USB 2, Firewire and via additional removable 2.5" drive

 

Blackmagic Design
Model Codec Media I/O Other Features
Hyperdeck Studio Pro *

Uncompressed QuickTime 4:2:2 (up-to 2K)

Compressed ProRes and DNxHD formats

2 x 2.5" SSD drives 3G-SDI
HDMI
Component video
XLR
Reference
Phono in
Timecode
HD-SDI loop thru
1U rackmountable
Records up-to 4 channels
4K ProRes 4:4:4 playback
Thunderbolt transfer
USB 2.0 (management)
Ethernet

Hyperdeck Studio

Uncompressed QuickTime 4:2:2
ProRes formats
DNxHD at 220mbs (MXF or QT)

2 x 2.5" SSD drives

3G-SDI
HDMI
Reference
Phono in
HD-SDI loop thru

USB 2.0 (management)
Ethernet

Bi directional - HDMI to HDSDI conversion.

 

VITEC
Model Codec Media I/O Other Features
FS-T2001 XDCAM EX/HD/HD422 up to 50 Mbit/s (MP4/MXF)
DVCAM (Q1 2013)
SxS cards (dual slot)
250GB internal storage
Supported Media:
SxS Pro+, SxS Pro, SxS-1, SxS MEAD / e-film adapter, XQD adaptor

HD-SDI I/O
- with 2/4 ch. Embedded Audio
HDMI
Composite
2 x USB 2.0 (host or device mode)
SD-SDI / DV25 input monitor and SD (DV25) playout (future)
FireWire input/output
- 400Mb/s isochronous DV and HDV (25Mb/s) input / output
- 2-ch embedded audio and TC
Gigabit Ethernet connection for CIFS/SMB and FTP access
- FTP Server for direct download of recorded content on SxS cards or HDD
- SAMBA Server for for preview, full or partial download of recorded clips on SxS cards or HDD

Media transfer over Gigabit Ethernet connection, USB 2.0 and Firewire
1.8" resilient HDD (non-removable)
Sony BP-U series battery or mains powered


*4 channel recording coming soon

Holdan Web TV

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Grass Valley T2
HD iDDR

 

Upgrades

HD Recording and Playout centre - 1TB Storage RAID 10
HD Recording and Playout centre - 900GB SSD Storage RAID 0
HD/SD Digital Video Recorder