DCA’s EFM
Decoder provides simple, automated verification for LBR bitstreams or
any source with TTL level access to the raw data. EFM Decoder takes
care of demodulation, decoding, HCRC comparison and reporting, and will
automatically notify you if it finds a problem, all before your stamper
is ready. DCA has always been at the forefront
of data verification, whether it was the introduction of the
industry’s first bit-to-bit verification tool for CD (DVS),
integrated signal verification (SVS) or complete format analysis and
HCRC comparison (Viper). Now, with EFM Decoder, DCA brings the power
and flexibility of HCRC to bitstream analysis. EFM
Decoder works in two steps, essentially first capturing the data from
the LBR return beam path, and second, decoding and verifying the data
against the ‘Gold Reference’ HCRC source or DDP. Integration
with DCA Mastering
EFM Decoder constantly monitors the DCA
mastering application (MIS 8.20+ or Titan) for incoming jobs. Upon
seeing a job start, EFM Decoder starts capturing the raw data from the
TTL inputs. Upon the mastering job reaching lead-out or middle area, it
begins the demodulation and decode process, ensuring that the cut does
not need to completely finish before the verification can start. HCRC
Data Verification
Immediately after decoding the user data
areas, EFM Decoder starts the HCRC Verification, using the same image
or HCRC provided for the input to the DCA mastering application as the
reference source. If HCRC errors occur, the mastering operator is
notified with a message at the mastering station. A complete report
detailing the verification can be printed or sent to metadata upon
completion of each job. Format Ready
Both
CD and DVD jobs can be handled without any changes to the EFM Decoder
system. Multiple Jobs
EFM Decoder
can capture and decode multiple jobs simultaneously at mastering speeds
up to 53 MHz. Small Form Factor
Knowing
that plants are constantly faced with space constraints, DCA delivers
EFM Decoder in a space efficient 2U chassis that fits in most mastering
racks. A tower chassis is also available. Coming
With Version 2.0
In 2008, DCA will release version 2 of EFM
Decoder which will bring:
•
Single stage capture/decode/HCRC comparison
• Near real-time verifications (over 3R DVD)
• Blu-ray format capability
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EFM Decoder Brochure (PDF)