diff --git a/Data/README-OTB-Data b/Data/README-OTB-Data
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index 0000000000000000000000000000000000000000..bfbe8ae0460b0ea1fdcb59d65dddcc9319f2ae28
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+++ b/Data/README-OTB-Data
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+
+These data are used to run the OTB test suite and to reproduce the examples illustrating the software guide.
+
+(this file is also used for the automatic location of OTB-Data by cmake)
+