I am getting errors upon use of JPG images, saved from Photoshop, in Encore.

Question

How do I use Photoshop JPG images in Encore without errors?
When using camera jpg images, saved by Photoshop (either save, or image manipulation like autocolor then save, no other Photoshop options were tested), Encore will either :
1) generate an image import error: "The software that's used to decode the media is not available on this system.  Installing the correct decoders for the files you are working with may help to correct the problem." and be unable to import the image,
2) Image import stops before completion (Encore stops responding and must be Closed by Windows Task Manager), or
3) with a number of images imported, upon attempts to create a Slideshow, Slideshow creation will stop while in progress, and Encore does not respond (Encore must be Closed by Windows Task Manager).
Import and Slideshow creation using untouched camera images is nominal and uneventful.
Import and Slideshow creation using PhotoShop(64bit) GIF (copy) images is nominal and uneventful.

Answer 1

The common cause of this issue is still image files where the pixel size is too large. This warranted its own help page, which is now a dead link.
http://helpx.adobe.com/encore/kb/error-software-used-decode-media.html
But I assume the pixel size is the same whether you are processing them in Photoshop or not. but the main point is that the underlying problem is not about decoders. Encore encounters a problems dealing with the file and throws the only error it (apparently) has. So you are looking for anything like that: pixel size, changes between rgb and cmyk, extra metadata in files. Maybe even filename oddities (length, special characters).
I would look in part at what versions you are using and compatibility settings.
I would save them as png or psd.