AnsweredAssumed Answered

Compress .ECW file to give to contractor using MapInfo

Question asked by ben_vk on Nov 11, 2012
Latest reply on Nov 12, 2012 by mboeringa2010
Hi Guys,

I have got an 18Gig .ecw file here at work, and a contractor has asked for a lower quality one that could be burned to DVD or put on thumb drive (i know we can get big thumb drive, but the DVD option is better for us) so im trying to work out how to convert the 18Gig to be a smaller 4gig file.

I have done the obvious thing of opening it in Irfanview, clicking save as, then reducing quality to abot 3:1 as per the options, and this dramatically reduces the file size to about 10meg, while still being adequate for what contractor needs. But when i bring this new ECW into my MXD map it comes up with warning - see photo below.

So i open Catalog and import the same coord system as all my projects/files and try again, but the error still comes up, and the image doesnt project on my plan.

Does anyone know why this is happening, and how i can resolve this?