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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

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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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