This is a purpose-built video editing computer that has the ability to capture SD video from both analog RCA jacks as well as FireWire video inputs. You can use that footage in a playback mode, or in a video editing mode where you can mix multiple layers of video, as well as titles. The whole thing is surprisingly real-time, but there is some rendering with the titles. 

This device is fully functional but is being sold AS-IS, as this is an old computer and an old hard drive. This is almost the highest end unit that was possible to buy. This unit has multiple additional cards installed that give more features and more inputs and outputs.

If you quit out of the video editing system, you can interact with the base operating system, which is BeOS, a really interesting operating system from around Apple's Mac OS 9 era. BeOS was great at playback of video, and so it's fitting that it was used to build a device like this. I tried out some BeOS apps, and the one main one that I left on is Blender, the 3d modeling and animation software. 

Included:
The Roland Edirol PR-80 Realtime Video Presenter with the DV-7DL Pro Expansion Installed
The Edirol DV-7DLC Video Editing Controller (and a USB cable to connect it to the computer)
A Roland MIDI interface that is compatible with the unit
A Firewire 4 pin to 4 pin cable, which lets you connect this unit to a Firewire camera or some pro DV decks
Power cable

You can still download software for these units from Roland, and there is a community of BeOS enthusiasts called Haiku that has links to this and more. 

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Information about the product:

Roland Edirol PR-80 Realtime Video Presenter W/DV-7 DL Pro Expansion

PR-80 Main Screen
Main Screen
PR-80 Edit Screen
Edit Screen

The PR-80 is one of the popular Roland PR Video Presenter Series. The PR-80 is a unique video display and performance system designed for video display or visual performances used in retail, concerts, churches, tradeshows, hotels, conventions centers and seminars. The internal hard-drive storage format is DV so display quality remains very high – ideal for plasma and large display applications. Playback of clips is instant and can be configured in preset sequences. Real-time presentations can be triggered on demand using a touchscreen, RS-232C device, MIDI controller, optional DV-7C controller, mouse or keyboard. The PR-80 is capable of streaming two high quality DV streams simultaneously that can be mixed internally without the need for an additional mixing unit. For ad display installations, the PR-80 contains a Scheduler for display management and is also networkable sharing content folders and clock adjustments remotely. Multiple PR-80s can be setup in a master/slave configuration for synchronized multiscreen applications. In addition, it can be turned into a stand-alone KIOSK via its customizable GUI.

The PR-80 also includes the full functionality of our DV-7DL Pro Direct Linear Editing system. The editing functions included with the PR-80 presenter allow one unit to both create and present content as well as make critical, last-minute changes to presentation content at a venue or event.

Play back high-quality video in Real Time

Play back and switch high-quality DV-format video images in real time.

A variety of Realtime Effects

Up to 4 types of realtime video effects like mirroring, colorize, posterise, etc... can be used simultaneously. Includes switching effects for smooth transitions between video images, control of playback speed, resetting of retrigger points, and more.

V-LINK Connection

Use the V-LINK function to exhibit video during musical performances, create virtual clips of live video sources with the V-8, or V-4 (video mixer) control, use the Presenter Control for simple and easy coordination of multiple PR-80s and more.

A variety of External Control Functions

Not only can you use the keyboard and mouse, you can use the RS-232C port, optional touch screen, or use the optional DV-7DL Controller, and more. In addition, import and export DV clips and user-define masks via LAN.

Dual-stream Playback 

Play back two pieces of video at the same time - cross dissolve, mix or even key one over the other (luminance and chroma keys are supported).

Automatic Operations with the Scheduler

Use the Scheduler to have the PR-80 automatically perform a variety of functions, such as playing back data, stopping, synchronizing times over a network, or starting up at a predetermined time.

8 types of Preset Masks - also user-definable.

pr80_masks

8 types of Preset Convergence and Color bars

pr80_colorbars

Multi-screen performance by controlling the PR-80 with a MIDI controller. Multi-Screen Setup Instructions.
The PR-80 can be controlled by MIDI note and program change information.
The PR-80 can also be controlled by the DV-7C, regular keyboard, and RS-232C control such as a touch screen.

pr80_diagram


VIDEO PROCESSING
Supported TV System
NTSC or PAL (Differing according to regional specifications)
Video Format
DV format
AUDIO PROCESSING
Audio Format
PCM (16-bit, 48kHz)
INPUT/OUTPUT CONNECTORS
Video input & output
DV jack (i.LINK), 4-pin type (IEEE1394)
Audio output
Headphones jack stereo 1/4 inch phone type
Audio input
1/4 inch phone type (Mono)
Video input & output
DV Jack (i.LINK), 4-pin type (IEEE1394)
Video input
S-Video 4-pin mini DIN type (Y: 1.0Vp-p, C: 0.286Vp-p, 75ohm), Composite RCA phono type (1.0Vp-p, 75ohm)
Video output
S-Video output 4-pin mini DIN type (Y: 1.0Vp-p, C:0.286Vp-p, 75ohm), Composite RCA phono type (1.0Vp-p, 75ohm), BNC type x 2 (1.0Vp-p, 75ohm)
Audio input
RCA phono type (L,R)
Audio output
RCA phono type (L,R)
STORAGE DEVICES
Internal Hard Disk Drive
80GB (for system program and data storage)
Expansion Slot
Removable Hard Disk 1 slot (for optional DV-HD series), CD-ROM Drive
OTHERS
Controls
PS/2 6-pin mini DIN type x 2 (for mouse and keyboard), LAN Port 10/100 Base-T x 1 (to import / export DV clips and bitmap masks)
Serial Port
RS-232C x 1
USB
A type x 4 (for optional controller, card reader, and MIDI interfaces)
Display Output
HD DB-15 type (Analog RGB, resolution 1024 x 768 fixed), Optional touch screen when use with RS-232C
Power Supply
AC 117V, AC 230V, AC 240V (50/60Hz), AC 220V (60Hz)
Power Consumption
90W
Accessories
Mouse (PS/2), Mouse Pad, DV Cable, DV-7DLC Template Sheet
Options
Video Editing Controller: DV-7DLC, Removable Hard Disk: DV-HD120, Card Reader, Edirol PCR keyboards (for V-LINK)
SIZE AND WEIGHT
Width
360 mm
14-3/16 inches
Depth
420 mm
16-9/16 inches
Height
130 mm
5-1/8 inches
Weight
8.5 kg
18 lbs. 12 oz.