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Re: .sav format [message #52579 is a reply to message #52531]

Sun, 11 February 2007 13:47

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

JD Smith <jdsmith@as.arizona.edu> writes:
> On Sun, 04 Feb 2007 02:04:09 -0500, Craig Markwardt wrote:
>
>>
>> "mgalloy@gmail.com" <mgalloy@gmail.com> writes:
>>> On Jan 29, 1:49 pm, JD Smith <jdsm...@as.arizona.edu> wrote:
>>>> The license grants "the author of this software, and to all IDL users,
>>>> a license to use and redistribute this software in source or binary
>>>> form, subject to the following conditions", so they've already given
>>>> us the license (restrictive though it may be).
>>>
>>> To "use and redistribute this software" (i.e. CMSVLIB), but the
>>> original poster wanted documentation of the .sav format (presumably so
>>> they could write their own software).
>>
>> The documentation of the format is unencumbered by any license other
>> than Creative Commons.
>
> The "license" does seem to indicate that *anyone* needs permission to
> create a tool to read .SAV files, whether or not they have agreed to an
> EULA:
>
> "Non-RSI supplied software that reads or writes files in the IDL
> Save/Restore format must have a license from Research Systems
> explicitly granting the right to do so. In this case, the license
> will be included with the software for your inspection. Please
> report software that does not have such a license to
> Research Systems, Inc."

J.D., RSI can claim whatever it wants, but legally they have no
control over users who do not hold an IDL license.

> They haven't yet wielded the DMCA hammer, but I don't doubt that they
> would if they felt it necessary. There is a reverse engineering clause
> in the DMCA, but I'm not sure to what degree it applies:

Since IDL save files (with data only) are not encrypted or scrambled
in any way, they are not covered by the anti-circumvention provisions
of the DMCA. Furthermore, since the data is (presumably) *your own*,
you have your own authority to grant permission to extract the
information from the file.

> I for once don't see the point in so jealously guarding a format: it's a
> perfect way to ensure it never sees wide use.

A good point!
Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		.sav format By: ChristopherFlorio on Mon, 29 January 2007 04:50
		Re: .sav format By: JD Smith on Tue, 30 January 2007 09:58
		Re: .sav format By: Michael Galloy on Tue, 30 January 2007 09:40
		Re: .sav format By: Paolo Grigis on Tue, 30 January 2007 07:36
		Re: .sav format By: Haje Korth on Tue, 30 January 2007 05:21
		Re: .sav format By: Michael Galloy on Mon, 29 January 2007 13:01
		Re: .sav format By: Craig Markwardt on Sat, 03 February 2007 23:04
		Re: .sav format By: JD Smith on Mon, 29 January 2007 12:49
		Re: .sav format By: Haje Korth on Wed, 07 February 2007 05:10
		Re: .sav format By: JD Smith on Tue, 06 February 2007 15:45
		Re: .sav format By: JD Smith on Tue, 06 February 2007 15:44
		Re: .sav format By: Haje Korth on Tue, 06 February 2007 12:00
		Re: .sav format By: Craig Markwardt on Sun, 11 February 2007 13:53
		Re: .sav format By: Guillermo on Tue, 06 February 2007 11:04
		Re: .sav format By: David Fanning on Tue, 06 February 2007 07:42
		Re: .sav format By: Haje Korth on Mon, 05 February 2007 15:02
		Re: .sav format By: JD Smith on Mon, 05 February 2007 12:46
		Re: .sav format By: Haje Korth on Mon, 05 February 2007 10:27
		Re: .sav format By: JD Smith on Mon, 05 February 2007 09:58
		Re: .sav format By: Craig Markwardt on Sun, 11 February 2007 13:47

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