nivek@cmu-ri-rover.ARPA (Kevin Dowling) (03/08/85)
I received some information from Sony about the CD-ROM's. Sony CDU-1 CD ROM Drive Unit - Performance. Memory capacity: 540M bytes/disc Total number of blocks: 270K blocks/disc Data block size: 2K bytes (2,048 bytes)/block Data block rate: 75 blocks/sec Data Transfer Rate: 600K bytes/sec (max) 150K bytes/sec (sequential) Average Access Time: 50 msec (block to block) 1,500 msec (first to last block) Bit error rate: 10^-12 (after error correction) Physical Specs. Optical pickup: Semiconductor Laser (lamda = 7,800 A) Rotational speed: Approx. 200-530 rpm Motor start-up time: 1 sec. (Max) Usage: Horizontal only Indicator: Activity indicator on the front panel Operating temperature: 5C to 45C Power requirements: +12V, 112V DC, 1A (average) 2A (peak) +5V DC, 1A (average) Dimensions: Envelope (149W x 82.6H x 208D)mm Weight: 3 kg. There is an optional AC power adapter that supplies all the correct voltages. (AC-800 AC Power Adapter) Complete with descramble, sync detection, header check and error correction. No controller needed. Built in exactly the same size as a 5" floppdisk drive unit. The data base you have built up can readily be transformed into CD ROM's. You send 1/2" recorded tapes to Sony and they add all necessary subcodes and error correction codes as well as sync and header signals. Apparently these will be $300 in quantity.
Kevin.Dowling@CMU-RI-ROVER.ARPA (03/08/85)
I received some information from Sony about the CD-ROM's.
Sony CDU-1 CD ROM Drive Unit -
Performance.
Memory capacity: 540M bytes/disc
Total number of blocks: 270K blocks/disc
Data block size: 2K bytes (2,048 bytes)/block
Data block rate: 75 blocks/sec
Data Transfer Rate: 600K bytes/sec (max)
150K bytes/sec (sequential)
Average Access Time: 50 msec (block to block)
1,500 msec (first to last block)
Bit error rate: 10^-12 (after error correction)
Physical Specs.
Optical pickup: Semiconductor Laser (lamda = 7,800 A)
Rotational speed: Approx. 200-530 rpm
Motor start-up time: 1 sec. (Max)
Usage: Horizontal only
Indicator: Activity indicator on the front panel
Operating temperature: 5C to 45C
Power requirements: +12V, 112V DC, 1A (average) 2A (peak)
+5V DC, 1A (average)
Dimensions: Envelope (149W x 82.6H x 208D)mm
Weight: 3 kg.
There is an optional AC power adapter that supplies all the correct voltages.
(AC-800 AC Power Adapter)
Complete with descramble, sync detection, header check and error correction.
No controller needed. Built in exactly the same size as a 5" floppdisk drive
unit.
The data base you have built up can readily be transformed into CD ROM's.
You send 1/2" recorded tapes to Sony and they add all necessary subcodes
and error correction codes as well as sync and header signals.
Apparently these will be $300 in quantity.
nivek
aka: Kevin Dowling
Arpanet: nivek@cmu-ri-rover
Bell: (412) 578-8830
USmail: Robotics Institute CMU
Schenley Park
Pgh, PA 15213