Converting tiff to ecw using ArcGIS

[JilleenBrokensha]

Good day

I am looking for an app/extension that converts georeferenced tiff files to ecw files.  I have a large amount of files to convert.  If not in ArcGIS, does anyone know which other program I could use?

Regards
Jill

[NiklasNorrthon]

ECW is a propriary format from ER-mapper. Do create ECW-files you need to buy software from them.

/Niklas

[PaulBeaty]

The ERDAS ECW/JP2 SDKs are used by many commercial and non-commercial organizations to read, write and serve ECW and JP2 imagery. The ECW SDK was obtained by ERDAS, Inc. when ERDAS, Inc. purchased ER Mapper, Ltd. in May 2007.

ERDAS has implemented the ECW SDK into the entire ERDAS desktop and server product suite. As stated above, the ECW SDK is licensed to organizations wanting to read, write and serve ECW and JP2 data. ESRI uses the free 'ERDAS ECW/JP2 SDK Desktop Read-Only' to support ECW and ECWP in ArcGIS for Desktop.