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MrSid Files Size From NAIP Sites

Guest Simpit
Guest Simpit
in FSX | FSX-SE Scenery Design Forum - How To

Featured Replies

I have a MrSid file that is 274mb in size. I have tried three programs to convert it to TIF. Each ends up after 30 minutes continuing to process. Lizard Tech has one called mrsidgeodecode_win.exe. It runs from CMD and immediately says that the TIF file will be 4GB and that is too large for it to process. I assume that the others are trying.So, is it normal when converting a MrSID to TIF to see such a large size expansion during conversion?Dick Boley

regards,

Dick near Pittsburgh, USA

That seems about correct. MrSid is amazingly good compression. This page: http://memory.loc.gov/ammem/help/mrsid.html says the compression ratio averages 22:1, and lists the reasons for using it.Derek

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