The European Data Format (EDF) is described in the article by
Bob Kemp, Alpo Värri, Agostinho C. Rosa, Kim D. Nielsen and John Gade
"A simple format for exchange of digitized polygraphic recordings"
Electroencephalography and Clinical Neurophysiology, 82 (1992) 391-393.

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EDF software by Biologic
Validation of EDF compatibility, Bob Kemp, 26-APR-2006

Note that this is about EDF and not about EDF+

Disclaimer and copyright
My colleagues and I are good at EDF, but we can make mistakes for which we do not have any insurance. Our understanding of the validated software and systems is limited. Of course, any obvious mistakes will be corrected when brought to our attention. And I want to provide objective and trustworthy information about EDF. But we cannot accept any liability related to this validation. This is not an official certification body. So any damages related to this validation or publication are the risk of the company mentioned above.
 
This report, or parts of it, may only be published by myself through my EDF webpages.

SOFTWARE USED TO MAKE THE VALIDATED FILES

Manufacturer Contact person Software name and version
Name: Biologic
State/Country: Illinoi, USA
URL: www.blsc.com		 Name: Linda Santilli
State/Country: California, USA
Email: Lsantilli@natus.com

EDF Translate Utility
Ver. 2.02

REPORT

Recorded were 10 x EXG, Snore, PTAF, CFLOW, Flow, Thorax, Abd, SaO2 and Pulse. Tests were done using our EDF header checker. An EDF expert has further checked the header for internal consistency.

Recording1 Recording2 Recording3
Date/time of recording 21-MAY-2003
22.59.44

Recorded signals 18

Duration of recording 23004s

EDF file name Subject1.edf

EDF incompatibilities
 None

Other errors: the physical dimensions of SaO2 and Pulse are not specified

Remark: Respiratory signals are specified at the electrical output of the sensor ('physical dimension' uV) rather than at their physiological input.