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I just found out there are a few types of MrSID files - generations MG2,MG3,MG4. As I have a user which uses Bentley Microstation V8 and apparently can see only some of the generations (and thus I need to convert between the different generations)- I wanted to know if there is a quick way to detect what generation a SID file is (I have AutoCAD 2007, ArcGIS 9.3.1)?

Thanks in advance.

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2 Answers 2

up vote 5 down vote accepted

In ArcCatalog right click on the image and select Properties. Look at the compression type, MG! (generation 1), MG2 (generation 2), MG3 (generation 3), and MG4 (generation 4).

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As the answer is simple, I feel a bit stupid. But I thank you very much! –  jonatr Dec 19 '11 at 13:51
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gdalinfo will also tell you the same information with a VERSION tag.

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Thanks - I'll give that a go. –  jonatr Dec 19 '11 at 15:18
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